Convince yourself that every passing minute is an opportunity to get better (at art, music, cooking, whatever your passion is). Doing things that aren't directly related to your goals will eventually leave you with more time to pursue your passions. Prioritize what you need to get better at, and focus all your energy on those things.
Power of Habit - Charles Duhigg
Eat that frog! - Brian Tracy
Brain Storm - Don Hahn