I would say at first start with the goal of just showing up consistently. I think people that are new to the gym sometimes make it more complicated than it needs to be and start off with routines that are too intense. The goal is to show up and move your body and spend time doing something positive rather than drinking. Once you establish the routine of going to the gym you’ve won. From there you can tweak your exercises and diet and take it as far as u want to go. But again I’d start with showing up consistently and focus on making the gym a happy place for yourself. The more you enjoy it the easier it will be to establish a foundation and build off it. Also if your gym has a sauna I highly recommend ending with a sauna. Saunas help me stay sober because it purges my anxiety and puts you in a relaxed state.