Identity change

I got down to goal weight nov 2017 then in april 2018 I blew my mind by giving up drinking. Since then I started buffering more with food so I regained some of my weight.
Today I was thinking about the identity of being a non drinker. I don’t drink anymore, it’s who I am, which I find pretty easy. But being someone who doesn’t eat sugar or someone who doesn’t use food to buffer emotion, that’s an identity I haven’t managed to fully take on. I had it for a while but seem to have gone back to my old beliefs.
I’m doing the urge jar work already but would you recommend I also focus on the identity work and do you have advice on how to?