What are the most common leaks for a losing/break even player?

[dardo]

maybe not playing enough. I mean a break even stretch can last 20K hands, and until 100K hands you can't make a fair idea of what is your winrate.

also, just giving money away. Spend your $ just like in real life, no risking them without a good reason, and that should be anough to win at the low stakes, if not at any.