B12 and vit D are essential and a lot of ppl are lacking in them (B12 not if you eat a lot of meat). And zinc is important for general health, immune system recovery, skin.
Also, get into exercising. The body will start reviving and regenerating the more you give it to do. So find out what you like and what suits you
and get moving! There’s an active community here also, look at
October fitness challenge
Good luck! Welcome to your new life! And Congrats on your sobriety! 