Good to see you back
It's very important to remember that there will be another window of opportunity to take back control of your life and if you do go back into any addiction it is imperative to limit the damage by looking after yourself as best you can with eating, sleeping, etc. Put on weight, you can lose it again. Become unfit, you can get fit again. I've seen a lot of people that have taken on board the idea that if they relapse they will end up dead which is absolute BS unless you make it a self fulfilling prophecy. A lot of people don't go back to their addiction and successfully change their lives to allow them to live addiction free, but even more people go back to their addiction and they need to know that it is not a death sentence by any means.