Thank you everybody. I won't be relapsing because I know that I can't control it and one drink or joint will result in a binge; or a day or 2 of stress trying not to binge followed by a binge.
As for my Dad; I will talk to my Mum tonight and make suggestions. Thank you everybody who replied; sorry for ranting it's honestly not for attention or "poor you", I just don't have any other outlet and don't want to overload my partner.
In positive news; I've been taking my son back down to my boxing club and while my cardiovascular endurance leaves a lot to be desired... I am still sharp and fluid. Maybe a return to sport is on the horizon once my current battle has been won and all cravings/thoughts are gone. Never again.