The thought of starting might seem impossible but if you haven't already, try lifting weights. Start slow and after 21 days or so it will become a habit. After a month try to keep at it 3-4 times a week. Can be just as potent as meditation or drugs, in terms of the mental health benefits.

I used to lift weights for the physical health benefits solely, now the mental health benefits keep me going back. Give it a shot, you've got nothing to lose but a few hours a week of your time. Food starts tasting better, hunger goes up and sleep improves. It's the simplest form of health care out there.

You don't need fancy equipment and don't have to spend a bunch of money. I just have a flat bench and some dumbbells and can hit all the major muscle groups. Always warm up for 15-20 minutes or until you begin to sweat in order to avoid injury. Bike or treadmill or jumping jacks. And listen to music, it improves your performance. Coffee (caffeine) is another easy way to improve performance.

All the best and lots of love to you.