Eating healthy is a big part of mental health. If you eat crap than your body chemistry goes way off. I know that when I eat like crap im either a tired lazy ass or a pissed off ass.
Me time is also a big component of mental health for me. I go off and play on my xbox or work on the car. If all I did was go to work and spend time with my GF than id probably go insane. And ive been with her for two years and will probably marry her.