Micro-stakes crusher here.
I turned $50 into $8000 in 2007-2008 with cashgame (NL5 =>......=>NL50-NL100) and lots of bonuses, and from $35 to $2500 in 2017-2018 with MTTs (0.25$ =>...=> 5$).
I've tried higher limits, but I'm not good enough to be a big winner, so the additional earnings are...