Tanny, hello and good day to you.
After reading your profile text, I thought that - in case you agree - I can tell you how to learn English and - thus - improve your language skills, because I am a
Licensed Teacher of English at Private Language Schools - among other things.
A good way of practicing these skills is by reading American and English books of all kinds.
For example, let me recommend a fine one, titled "Great Expectations" by
Charles Dickens.
You can read the whole book and also browse and consult two well-written study guides
for the same book: