Pay yourself first (savings): take N% of your take home, put it aside before you allocate it to something else. Easier said than done, esp. when strapped.
Pay yourself first (time): budget time for health, hobbies, and family, and strive to make work bend around that. You don't get time back.
go to the gym, even if you don't like it
opting out of controversy holds your community back from learning