Hi Sam, I’m on day 28 after 5 years on codeine. The vitamins/supplements I use are all the Bs but especially B12, D and K2 and also mushroom extracts. I find Cordyceps, Lions Mane and Reishi helpful with tiredness and brain fog. There’s lots of mushroom complex options out there. I didn’t get on with 5-HTP, made stomach issues worse, but some people like it. As far as evening out dopamine, seratonin, endorphins etc the big ones are exercise, connection to other people, getting gut bacteria functional again (the 4 Ks, kefir, kombucha, krauts and kimchi) get lots of protein, chicken, eggs, tofu and a wide range of vegetables -eat the rainbow, 30 different vegetables in a week. Try not to eat too much candy. On top of that I’ve been doing Wim Hoff breathing exercises and taking cold showers (not for the faint hearted, and I can’t bring myself to do ice baths). If you have access then I hear saunas are really helpful. Any of the above might help, but I think the best advice is to go gently, see what works for you. But above all keep your eyes on the prize – do not use today. Today is all we’ve got and today is doable.
stay strong my fellow travelers. We got this!