Hey man do not listen to these jokesters telling you to try doubling up your 500, that's a bad idea for many reasons:
1. You are probably desperate and on tilt = bad decisions.
2. Players at those stakes are too good to give you an easy double up, chances are you will be taken to the cleaners.
3. You are probably a losing player, at least at high stakes, so again chances are you will be taken to the cleaners.
4. You have exhibited a lack of self control, what if you do turn 500 into 2000? Do you have the discipline to stop?
5. Losing 2000 is still better than losing 2500.