Mine wasn't I don't want to drink.
It was I will not drink. Ever.
And saying "I am no longer a drinker." Drinking is past tense.
Everyone's different. My own version of AVRT was, I think, the strongest tool in my sobriety kit. The "Big Plan" just kinda happened. I read about AVRT and RR after I'd already decided that I wasn't going to drink any more.
Pay attention to your sobriety and how good you feel. The fleeting pleasures of a drink or two can't hold a candle to the presence in the moment that sobriety brings.
I bet you will also find your OCD issues under control, and I also bet that any medication that you take for it will be more effective if it's not fighting with alcohol and regular withdrawal.