How to Drop $900

AA loses to AK; AK loses to 58, AJ loses to 8To, AA loses to 8To. This is when I get away from it, although I need the discipline to stay away for a period. Online bankroll down to $500, so I'll need a solid session to rebuild. This is my challenge, being able to stay ahead and build vs. big fluctuations. Last $350 lost in 30 minutes at $15/30 with first three hands.