My language background

I am quite confident as to say that my English language background is quite good. In terms of verbal communication I can say that I am quite good, since I have spoken English my entire life. Writing on the other hand is a more finicky subject. I am good at writing and can write elaborate and complex sentences, but I feel as though I am way too slow and always end up spending too much time fixing my mistakes. My reading background is quite strong, in the sense that I read a lot on a weekly basis and have quite a few books.