I'm just going to throw this out to the OP and he'll see if it applies to him.
I don't think it's a lack of anger issues, the issue at hand is fundamentally different, it's a lack of competitiveness.
People tend to avoid competition when they fear that if they took it very seriously they'd still fuck up and fail. So that competitive vibe gets bottled up and and a "relaxed attitude" or "lack of anger issues" is cited every time performance is particularly shitty.
The only solution here is try hard and win, winning is the important part, get back on that rollercoaster and start fucking shit up.
I don't think it's a lack of anger issues, the issue at hand is fundamentally different, it's a lack of competitiveness.
People tend to avoid competition when they fear that if they took it very seriously they'd still fuck up and fail. So that competitive vibe gets bottled up and and a "relaxed attitude" or "lack of anger issues" is cited every time performance is particularly shitty.
The only solution here is try hard and win, winning is the important part, get back on that rollercoaster and start fucking shit up.