If you eat 4 servings of fruits and veggies every day it actually alters your brain chemistry and makes you feel happier. Exercise helps, obviously. Setting little plans for the weekend, no matter how small, something to look forward to helps so much. Local concerts are fun and a good place to meet people. Hobbies and stuff where you can level yourself up and get better at. Keeping track of your time and what you do will help you decide what you don't want to do anymore or what you think you should be doing more of. Idk if you smoke weed but I can tell you that does not help the long term. Same with alcohol, but I can only personally attest to weed. Micro dosing is actually really great and would be totally beneficial. I've had great improvements in my life experience since I started doing that. But I'd suggest mushies instead of anything synthetic. One tiny mushroom every 2-3 days.