strive for perfection when you practice, enjoyment/involvement when you perform
About mistakes and getting rid of them:
But it's so terribly difficult not to play the pieces you love so much for your enjoyment (or sometimes as a therapy) at home, but only practice them.
I'm trying to practise to perfection, but when you've solved one problem, there's always new ones coming.. But I guess that's life.
Respect for every indication at the score