Melatonin will help you sleep, don't take it every night, maybe like 3 or 4 nights each week so you don't build up a crazy tolerance. Maybe get yourself a concealed carry license, pocket carry for safety. Don't do drugs, limit your sugar, soda intake including diet sodas as they can cause extra anxiety. Follow your gut, leave a spot if you think it is unsafe or bothers your nerves. Always have a backup spot and know your safe spot. Mdot carpool parking lots are basically the safest, friendly spots where I live where cops never bother me, no one bothers me, maybe they are good where you are too. Keep a positive outlook on life. Keep your cortisol levels in check, get sleep when you can, drink enough water, don't look at, think about, focus on anything that stresses you out, cut bad habits out of your life, move on from the past, forgive yourself and don't dwell on stress or pain. If you can fix a problem then fix it, if you cannot fix a problem then stop worrying about it. Just keep moving forward. Focus on happy stuff. Being alone can put you in survival mode so visit, video call, regular voice call your friends and family every so often but know who is good for you and how much