I'm not completely familiar with AVRT and such but I do know from my brief (but helpful) time I used SMART Recovery methods that they taught us that relapses might happen but aren't the end of the world and that you don't lose any "sober time" you just slip and pick yourself up again. Personally I think we learn the most from the stupidest/worst things we do. For example: now you know what triggered you and you can work on avoiding such triggers. Good luck!
...and I'd be the last to bash others and their recovery methods: whatever works for someone on a personal level is good, whether that be AA or a different method.