Building a bankroll

[pzhon]

I think the other people who responded assume you are playing limit, but it sounds like you are playing NL 25.

Your plan of squirreling money away as you win is ok, but not optimal. It will be valuable for you to learn to avoid tilting as much.

I recommend temporarily dropping to play NL 10 on a site like Paradise or PokerStars. There will be less money in each pot, and losing a buy-in will not necessarily seem like losing a big pot to you. Get used to being overbankrolled, and to having many buy-ins on a site. Build up the money without withdrawing and without tilting much.