(I assume online) The way I have built, and still build a bankroll is deposit the minimum, constantly. I look at it this way, I'm bringing variance to its knees if I'm a good player. I deposit 50 dollars, i work it up to 80 playing cash games and small tourneys. I deposit fifty more after another pay check. Play the same games with ONE bigger buy in tourney. You lose, your bankroll can support it. Eventually if u become a winning player and deposit 50 dollars every other week to support your very minimum losses, then eventually you will hit a big score to where depositing more is not necessay and you will be on your way to a substantial bankroll.