I use my bankroll to evaluate my poker performance,if my bankroll is smaller at the end of a poker session ,I will buyin at a lower level next time,if the bankroll is bigger I will buy in at a higher level.I never make deposits.
I think I'm improving my game a lot, I'm still not playing as I want but I'm getting positive results, if I were to number it from 0 to 10 I think I'm at 7 or so