my fight school doesn't work for basic moves it tells me to press c extend the left knee and it's a decap well it doesn't end in a decap and sometimes it doesn't move to the next move what do I do?

Well...I never used fight school, i messed around in whitebelt servers...

Try re-installing it maybe.

Uhm, yes try what war said. If that doesn't continue to work. Then i guess your only choice is to make yourself better by playing online matches.

Do you have an American keyboard ? If you have a French/Other keyboard, the buttons are not the same.

So, make sure you're pressing the good buttons.