Three Golden Rules
1. Don't stay up late, get lots of sleep - so you never play when tired.
2. Drink NO alcohol!
3. Indulge in NO 'sustances' which affect the mind.

...now, at least, your left hand will know what your right hand is doing!

(It's not so much fun as staying 'intermediate' like me tho'!)
More brandy! Hic! HFA