I think

I think learning English is hard.I mean, I need to know vocobulary to be able to speak. I must quickly learn English. It is  the world's most common language. I need to know it. Actually, learning a new language is both exciting and fun. I would very much like to speak English. English is always required.

I think

I think, learning English is hard. I mean, I must to know vocobularys for speaking. And I must fast need to speak English. It is all the world's common language. I need to know for it. Actually, learning a new language is both exciting and fun. I would very much like to speak English. English is always required.

Tip: Don't forget to put a space (or two) after a full stop.  It makes it harder to read without a space, and it just looks strange!  Keep learning and having fun.  :)

I think

I think, learning English is hard. I mean, I have to know so many words to speaking it properly. Plus I must speak English quickly. (Must you? Really?) It's a common language around the world, so I need to know for it well too. Actually, learning a new language is both exciting and fun. I would very much like to speak English. English is always required.

Just a note - English sentences always need a verb, so even simple descriptions (English is hard) still use a form of to be. You'll get used to our language habits. ;)

I think

I think,learning English is hard.I mean,I must to know vocobulary for speaking.And I will fast speak English.All over the world English is common language.I need to know English.Actually, learning a new language is both exciting and fun.I like to speak English Very much.English always required.

I think

I think, learning English is hard. I mean I must have some vocabularies to speak. And I have to speak English fast. Furthermore it is the common language all over the world. so I have to know it. Actually, learning a new language is both exciting and fun. I would very like to speak English. English is always required.