Well, even with these big obstacles I keep learning on my own to achieve my language goals. 

(You should add a determiner here (these), however you could also not use 'these' and switch 'even with' with 'despite' to convey the same message. Finally try not use anaphoric references (it) in your final sentences or concluding paragraphs but to be more concise in your writing you should write it out in full.

(Please, Don't avoid correcting me. I'll be very happy if you can help me)

('avoid' is usually used with the connotation that whatever you're talking about is bad or negative, as correcting you is not "bad" avoid seems misused instead use 'hesitate')
 

Hope this helps,

Raharuhi

P.S 

I sympathies with your situation and would like to remind you that although you may not have access to the greatest wealth of resources or privileges; you'll always have your thoughts, your voice and hence your language. Keep up the good work.

Learning on my own.

(Avoid using an adjective directly before an preposition instead use an adverb 'on'.  'to' is an important lexeme to be able to identify, I'd recommend being able to identify the 'infinitve' and 'to''s use as a preposition as 'to' is widely used in English. Since you're indicating that your statement holds (that you won't give up) the conjunction 'whether' conveys this more effectively than 'either'.) 

When I'm saying is that I'm learning by myself, it doesn't mean I pull myself down in my room closing the door and picking up all my books to learn. Of course, I've got friends on italki from whom I have learned a lot and I hope to keep learning.

('Is' shouldn't be used like this, but in less formal contexts makes the discourse flow better. Do not use 'on' when the preposition needs to denote a means of achieving something use 'by' instead. Aside from 'in' and 'picking' the sentence seems fine however the choice of word is unnatural, a more natural expression would be 'Lock myself away in my room, buried in my books'. 'Italki' It's small but if you want to write professionally you must ensure all pronouns like this have a capital letter. You may use whom here to be the object of the preposition 'from' furthermore stating only the past participial 'I learned' does not indicate you're referring to your experience but rather you learned, frequently 'have' is used with the past participial when you want to create this meaning. Once again you cannot have verbs/adverbs in sequentially one after the other be sure to add the appropriate word classes, in this case 'to' works fine. )

On the italki there're good teachers and here in Mozambique we've a lot of good institutes of English but I can't/couldn't afford that. All that I need is a partner with good fluency, but all I have is my pride and will to learn this beautiful business language.
Everyday I learn news words but sometimes these words escape  me or sometimes I get stuck in front of my friends or someone who speaks well.

(Please void adding the definite article 'the' to the names of social media platforms, it makes your language seem dated and people might think your ideas also are dated. Never contract 'there' and 'are' ever. when using quantifiers such as 'a lot of' refer to a multiple of things 'institutes'. Don't complicate the language if you're unsure look for the difference in meaning using both makes you seem unsure, 'couldn't' implies you couldn't afford it at the time but now you might be able to and implicitly suggest that it was the only reason. Try be less liberal with ',' if a conjunction would work fine, remember though you may use ',' to preface a compound or compound complex sentence which requires a conjunction. 'words is plural' this must be plural, the plural of 'this' is 'these'. 'stuck' does not conjugate  again from 'stick'. 'speaks' as the pattern (noun + or + noun) is plural. 

How can I become a good English learner?

(If you're conveying a doubt in your speaking ability you should use a contrasting conjunctive like 'but/yet/however' in place of 'while' to make this distinction also conjugate 'feel' to 'felt' if you're talking about how you felt when you communicated if not that is fine it then suggests you still hold such feelings. 'in' could be used here before 'practicing' but other adverbs such as 'whilst/when' or the use of an entire phrase like 'in regards to' works fine. 'make' conjugates' to 'made'  no need to conjugate 'is' your teacher is still patient. 'feelings' or is it a single one? Try specifying what you're memorizing adding a noun after the first 'more' would make the sentence flow better. 'Chinese speak Chinese but do Koreans speak Korea?' jk you probably just forgot the 'n'.

Explore the wonderful world that is English literature. Ask your teacher and English speaking friends for book recommendations. Find what you enjoy reading. Don't worry too much about the varied stylistics of what you're reading, clearly from your descriptively titillating use of English in 'coz' would suggest you already have an adept understanding of English use in context. Find something you truly identify with and that resonates with you as a person or you find absolutely fascinating. A good book can facilitate a great amount of discussion and thought~   

And to answer your question. I think it is the same for learning any language, just use it everyday. Diligence and strength of volition. Yup, sheer will and hard work will do it, your brain will figure things out as you go just don't have any doubt in yourself. My WeChat ID is the same as my name (no caps). 

Hope this helps,

Raharuhi 

First Notebook

(Try avoid using 'get' in the sense of achievement when talking about attaining something figurative. Always use the definite article with superlatives 'The Biggest'. Try not over complicate the language 'social media network' can suffice. 'also' serves as a conjunction you don't need 'and' as well. I understand the use of 'pepper' within this context but it could be replaced with 'supplement/build upon/support' all work well.  

Second, I know my English is so bad but I also know it is getting better every day. I use a lot of methods such as reading grammar, listening BBC Radio, watching films, lecture, cartoon (I love cartoons), etc. Perhaps, you're thinking "Why is this guy reading Grammar while he is learning basic English". Well, some friends told me-"Stop reading grammar or avoid reading grammar cause It'll confuse you", I disagree to a certain extent with my friends. I've forgotten where I read this sentences: "Grammar is the skeleton and words are the flesh"

Use 'but/on the other hand/conversely' if you want to state contrasting ideas. 'every day' is more natural than 'a day'. Don't forget to use your quantifiers 'a lot of'. When listing use 'such as' not just 'as'.If you'd like to add additional nonessential information use ' ( ) ' not  ' ".." '. Instead of 'as long as' you can use 'while', 'as long as' is used for stating the conditions for a statement or comparing measurements. Try not over complicate the language focus on one action 'friends told me'. some extent implies you're not entirely sure to what extend, certainly suggest you know the extent, opt for using only one to add cohesion to your discourse.

Third, My advice for whoever is learning English "Do your best, the best you that you can do" as I'll do mine. Make schedule and try to maintain it.

('whoever is' is more natural however you could also use 'for those who are'. Sorry for correcting a quote but that's the idea I got. 'so as me' should comment on a previous part of the text since you're using 'as' here we're referring to 'doing' something so 'I'll do mine'. It seems you're using 'get' to mean attaining or keeping something in good condition, try to increase your vocabulary 'maintain/stick to/keep up with/manage' can be used specifically here.)

I've read an article where the author said something like: "Language learning is like learning language over again"

(Sorry for correcting another quote,  I suppose it can be interpreted as over doing (as in too much done) language learning or doing over (repeating) language learning.

Hope this helps,

Raharuhi