It’s very possible, but getting your bankroll 10 times over is a long haul OR a big win in MTT.
Getting ITM half the time is probably not realistic as someone showed above, definitely not long term. Also, playing a tenth of your bankroll for each SnG is a good way to go broke.
Aim for 10% ROI with at least twenty buy in’s. If your site has $2 + .20 SnGs, do those until you get over $100, then switch to $5 + .50. With a 10% ROI, that will take you around 450 games. That could be your whole month, or that could be one long week of poker. Really depends on how much you play.
Assuming you could continue the same ROI (unlikely at first, but possible long term), it’s another 450 games to get to $200. Another 450 to get to $400 and then $20 + $2 games. Then just a quick 45 to get to $500!
So, all in all, you are reasonably looking at 1400 SnGs to get there. Good luck!