I play 2nl, and today I was looking at my hud stats and over the past 4,000 hands I am negative $4.75. Is there a way that I can fix this like any good big blind calling charts out there.
You're supposed to lose from bb. If you folded every single time you'd lose at -100bb/100 so you need only lose less than that when you do play your hand in the bb.
-40bb/100 is a reasonable starting number to aim for though better win rates are achievable.
4k hands is a **** sample.