well its easy
reading is important if someone is thinking of imporiving their language skills ,, it'll help you learn new news and enhance your writting skills
so try reading books, newspapers , online articles sometimes
try not to watch movies with arabic subtitles .. listen to the news on the radio
express yourself by writting a diary , then by the end of the day look at what you've written and correct your own mistakes
find someone who is fluent in english so that you can improv ur spoken language