No kidding Hon it is good <img src="/ubbthreads/images/graemlins/up.gif" alt="" /> , and your teacher was/is right, the other thing that helped me lots was reading in english particularly Magazines with good credentials like "Time" <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Oh and btw the proper sentence would be:
I still find that my English sucks. with a letter s on the end <img src="/ubbthreads/images/graemlins/smile.gif" alt="" /> (heh presuming you would call it proper english in the first place as it is more like slang)