I'd recommend 1-2mg, then second time try the 2mg plunge. My first time taking Xanax I had virtually no benzo tolerance. Had only taken a few klonopin bought from a friend months earlier. My sister had a refill on her Xanax I picked it up at the pharmacy and took 4mg. Within 30 minutes I was in shitfaced land, drove 5 minutes to my friend's house, forgot how I got there immediately, and passed out on his bed for a couple hours, after handing out half the bottle I had left since I was feeling "so good"....
I mean it felt amazingly calming but way too much. 1-2mg for the first time, and DONT drive