Playing like you don't care= +EV???

[SpeakEasy]

The optimal state to play poker --

You have an very strong desire to win, you hate to lose, but the value of the chips does not matter. You might be playing $1/2 or $1000/2000, and your desire to win in each is the same.

If you play within your bankroll, this works.

[avfletch]

For me I have to be playing in the sweet spot of my BR. I never play underrolled but for a long while I played far too low for my BR/skill because I didn't have faith and it was terrible for my game. Winning and losing stopped being that important and my game stagnated for ages.