Hi and welcome Vimes
I can definitely relate with things being harder after a relapse. In the end though I think you just need to grit your teeth and do it - you'll find a lot of support here too.
Maybe look at your recovery plan a little deeper too - sports and exercise and keeping busy are all great things but, as you saw, they won't necessarily help you in situations when you're offered a drink.
Hopefully adding SR to your daily programme will help you flesh out some more recovery plan ideas
D