Just play a lot, try to learn from your mistakes and not making them twice! (StackMaster knows what I mean, lol) Try to understand what certain positions are all about and what the key squares are........and don't miss force wins if they are there. Play not too aggressive when you are playing black! Defend first and counter only when the time is right, but you can only learn by experience when it is that right time...) Do not replay the games of the best too much because if your opponent makes another move you just don't know what the position is about and you'll probably lose..... Making notes on the games is recommendable! Put your fisrt piece always on the same place eg e1!
I did all this and it ended up so far with 32 tourney wins at www. itsyourturn.com, which noone ever achieved and 2400+ points here but that doesn't say that much I think.......

Regards,
Stefan