With his alcoholic history (depression n bipolar n family upbringing) you would really get a lot out of going to al anon meetings. Go to as many as you can. What the heck, you can go to them every night. Sign up as a literature or treasurer. It will make you keep going. Awesome way to GAL and learn from rookies how to detach.
I wish you all the best!!
M 42 H 39 T10 (-2yrs separation) S8 D5 DD 7/30/11 (EA&PA) Reconciled 6/2013 Separation in works 1/2017