In general, your note was quite well written. Indeed, to learn another language is not easy as it requires plenty of reading, listening and speaking. As suggested, Duolingo is an option but I would also suggest a book to read that also comes with audio; this way it will help with your command of vocabulary and comprehension as you can listen to it and read it again as often as necessary. The best way to improve your speech, if that is also important to you, is to have frequent conversations with someone proficient in the language are you learning. Please feel free to contact me should you need assistance. I would be glad to help.

There's some apps you can use like duolingo or memrise that can be really helpful, also a good thing to do is listen to music in the language you want to learn, or watch movies or tv shows in english, or youtube videos even; to help you with listening, for reading maybe comics or books, or even just online articles are good. 頑張ってください！

Thank you for your comments! What is better sorce to read and listen? In your opinion.

I think lots of reading and listening is important. I find it very difficult too. You will slowly understand more with time if you listen and read lots of examples. (this is my opinion).