Poom's Problem

I have a problem with learning foreign languages. I’ve been in Sydney five months ago. I started to learn English class since July 2012.I’m waitress at Thai restaurant.I can’t understand English well.I can’t avoid speak and listen English with customers.I’ve tried to learn in class and speak English with people every day,but it hasn’t worked.

What should I do?

1. Thum jai
2. When you don't understand anytihng you need to look at No.1.