Need help with a statistic?

[bluechip270]

I need help commuting this statistic. I want to know my chance of going broke if i have a 40k bankroll and I buy in for 2k everytime in a NL 600Min buy in with 10-20 blinds. I dont know my Standard Deviation, but I have turned 2k into this 40k over 2 yrs of poker and I am really really curious of what my odds are of going broke.

ALso, I started tracking my statistics as of 4 months ago. I am curious if some winning players can tell me their wins and losses for a day for the entire yr. I want to see the different type of streaks one is capable of experiencing.

Thank you very much in advanced.