Yup. LP is right. You're going to hit walls if you don't get trashed. Find some good players and keep getting your ass whooped till you can beat them. Then rinse and repeat.
theMenace I will explain this to you... You must think of fighting games as life and death, so you need to play dirty, you need to be cheap, and you need to cut any corners you can. There are steps you can take to make yourself a weapon...
1: Just Guard, learn it, live it, love it. If you aren't using it constantly, you aren't playing the game right. 2: 2A, this is probably the most important move in the game by most characters... its stupid how much you will use it... not so much nightmare tho... and 3: hacks... hacking works so I sugguest using it.