Hey all!

Divorce pretty much finalized, custody battle left. (I'm 31M 6'5" 225) and now with pain as a pre workout, I'd like to get back into the gym to work on flexibility and muscle growth.

Could anybody steer me to some resources or plan/schedule that I could use to start off with? Preferably different muscle groups for different days. As well as a quick stretching routine to improve flexibility. I recognize I have to start slow as I've only been doing calisthenics, but it's not cutting the pain enough.