1) Nothing difficult is ever easy.

Don't play the easy stuff again, practice the things you're not good at.

2) S.T.S.D.   

Stop. Take a breath. Slow it down. Do it again.

3)  One surface first.

If you can't play it on the snare drum (or pad) you can't play it around the drumset.

4) Off the left (or right, if applicable).

Make sure to start everything with your weak hand also.

5) Relax.

Control comes from degrees of looseness, not degrees of tightness.

6) Comparison is the thief of joy.

Don't compare yourself to other people. 

7) Consistency is the key to success.

Consistent action creates consistent results.

8) Practice music

Don't just practice patterns out of books or new fills, grooves and licks. Play along with songs. Play music!!!