[MediaPA]

Don't play too high. Playing high does a number of things (to me at least). It makes low limits seem trivial and boring. It also can lead to over-confidence in the short term, or being completely broke if you mis-step or don't move back down.

Don't sit with more than 10% of your 'bankroll' in play. Even that may be too much. One suck out can lead to major tiltage and bankroll destruction.

Set some sort of a stop loss (BBs, buyins, etc). It could be just that the cards aren't running for you that day or more than likely it's your play being affected by something.

Setting up a second account is a good idea. Cash out some money when you are running good. That way, if you crash and burn, there's some in reserve.

Pick the game that you are going to play and set some kind of goal. My goal was to play 100NL until I won 20-30 buy ins then move up to 200NL. Well, I've failed miserable and am taking another break from poker. This was after 'donating' $250 back of the $850 I was up.

Just a few suggestions to do w/ as you will.