You are not a loser, just stuck in the battle with addiction. I think an action plan is definitely needed to help get through the cravings. As for exercise, start at home. Chores are great exercise - they get you up and moving! I get most of my steps in doin laundry as I fold in one room and then take small piles to each room of the house. It’s a start, right? Do you have one friend or one family member you can confide in? Perhaps that could help with having someone to talk to??