well hopefully you guys with kpd like this are taking advatage of the basic training, that is what it is for, it can only help you improve.
also, the more you play with good players the more you good habits you will pick up (well, this theory doesn't seem to help Ruthless, LOL!!!), just start noticing where and what the better players do, bind weapon buys, be ready to get to those prime spots as soon as you spawn. Know where your opponent is going to be so you don't waste nades and flashes. for instance, in office, if you spawn closes to doors, be ready to rush either front stairs or front office, be ready to either wound your enemy with a nade making them easier to kill or at the very least, annoy him with a flash! who knows, maybe you might get an easy kill from a blinded or semi blinded enemy.