fixing my body and soul from my past abuse?

So I was stuck in an abusive relationship for 3 years. My ex never let me stay sober, because he couldn’t stay sober, he forced me to do meth for the whole time. I only got away because he got locked up. I am now trying to peice my life back together and want to know if there is anything I can do help me pull myself together after Meth abuse. I just want my body/mind/soul back. I have been clean for a year now(all on my own) but now that i am not malnutriced, I have gained weight like crazy, and want to find some healthy ground…..help…..any ideas………..?????? thank you