Yaya, the coffee and adderall are probably just juicing your adrenals, which are totally worn out at this point, so it’s not working. Unfortunately, healing from the place where you are takes time and you will probably just need to cope with the exhaustion, hard as it is, while you allow yourself to heal. Weight gain is normal, especially from the low place where you are, but you should start to see other improvements after the exhaustion clears. Just go with it and be sure to sleep a lot. You need it. Do not be afraid of the sugar or salt either. You need those, too, when your adrenals are worn out. Vit C. might be helpful, too.