When I was taking Vestibular Retraining with my Physical Therapist, I asked about alcohol. BUt it seems to be one of those things where common sense already tells you the answer. If you already have a compromised balance system, where it can sometimes be overwhelmed or you feel dizzy, and you know that alcohol can "dampen" the brain's ability to maintain balance, it should not be surprising that your capacity for drinking (after AN) is reduced.
I agree with the other poster that 1 drink now equals 2 or 3.
PS. Taylor, I was in college during the 70's, so I know about marijuana. I won't judge. But, just take a look at the people you know that smoke a lot of marijuana, they are probably not going anywhere. Many of them will be existing for the moment, and not moving in a positive direction with their life. Be careful, I wouldn;t want to see you become one of them.