You’ve already made the biggest step, after this fast your appetite will have reset, and you’ll no longer have sugar withdrawals, so it’ll be easy to manage your portion sizes and get on a right track moving forwards. Just eat healthy and lean when you start eating again, and listen to your body, stop eating when the hunger goes away, don’t eat till you’re full. Try avoid refined sugars as much as you can. Switch from fizzy drinks to something more healthy (I love water so it was easy for me). Don’t give in to the inner greed either way lol. But yeah, you’ll find your appetite has decreased and you’ll be full very easily, so try be aware of that and stop eating when you don’t need to. This is what happened to me and the weight started dropping off like crazy, i didn’t even need to use much discipline to get there, just portion control and listening to my body when I was no longer hungry.