Clarity precedes mastery. Craft clear and precise plans/goals/deliverables. And then block out all else.
The smallest of actions is always better than the noblest of intentions.
Keep challenging yourself to think better, do better, and be better.
Bravery is the solution to regret.
To double your income, triple your investment in self-development.
Leave your ego at the door every morning, and just do some truly great work. Few things will make you feel better than a job brilliantly done.