In reply to jamesg85:
Worked for me - shifting the focus from what you think is pleasurable at the time but has a downside, to pleasurable activity that only has positive returns. Getting started is the hardest part, so well done! Once you get into the swing it's a big positive feedback loop - the fitter you get, the better you feel, the easier it is to motivate yourself to get out and run and stay away from the things that would delay your recovery and his you back.
I found picking out races to train for very useful as well - as long as you're only looking to improve your PB, and not caring about where you are in the field, it gives you a plan to keep you motivated.
Teetotal for years now, best thing I ever did.
Enjoy the journey 🙂