I like comic books

Starting in my childhood, I read a lot of comics that my dad had bought for me.
My favorite superhero is Spiderman. I really like him because he is a really smart person and he likes to help people who are in trouble.
Once in awhile / Sometimes, I wonder (ask myself?) if some day I could travel to USA and buy all the comic books that I want.
I also like to read books, but the books that I like are all written in English!

For that reason, I want to learn this language. 

Good job! I, too, read a lot of comic books in my youth. My favorite superhero was Iron Man, so you can imagine how happy I was that the technology of today allows him to be portrayed properly in the movies. While I am not sure that they made me a better student, they did improve my vocabulary! Keep reading and posting! My apologies if I did not correct your writing properly, but I did not really understand your third sentence above. Regardless, I hope this helps you! J.