want to improve myself
Good afternoon, jabbar sati.
(1) If you wish to improve the way you speak, you might try:
(a) asking native speakers to point out IMPORTANT mistakes that you make.
(b) listening carefully when you watch English-language movies or TV.
(c) speaking English as much as you can every day.
(d) getting a book or taking a class that teaches you exactly where to put the tongue in order to make particular sounds.
(e) singing English-language songs with your friends.
(f) Checking out what resources are available on the Voice of America and the BBC.
Best of luck to you!!!