avoiding triggers isnt a terrible strategy but reality is sometimes you gotta just push through the tough stuff and remain sober anyhow. IE sometimes theres no way to avoid them.
I've had to learn how to avoid, deal, cope and push through stuff that otehrwise woulda sent me straight to the bottle. It alls tarted by deciding that drinkign was no longer some kinda solution to anything then I had to face the music and figure it out.
I'd say decide alcohol is no longer welcome in your life. Then figure out how to deal with your rejection issues or avoid them whatever works.