I take klonopin twice a day and my doc just prescribed me Busiprone?

You may not like this part of my answer, but drinking excessively while taking Klonopin is a bad idea. My son graduated from college about 6 years ago, and I would visit him on Campus from time to time. I wasn't surprised with the consumption of alcohol, it was the Drinking Games that gave me pause. You know the games I mean. Most of them require the winners, or losers, to consume a great deal of alcohol at one time. Once, when I was there visiting, we had to take a kid to the hospital for Alcohol Poisoning. And this kid wasn't taking any kinds of meds, he just drank too much, too soon. What a lot of your peers don't understand is that alcohol is poisonous to our bodies. I am the first to admit that drinking on the weekends is fun, and that most everybody does it.
But you are in a more dangerous position, because you are taking Klonopin, along with the booze. All you have to do is look at the info you get with every refill, and you will see that the drug manufacturers tell you not to drink while on this medication. They don't put it there to wreck your fun. It's there for a reason. You said yourself that it doesn't take as many drinks for you to get drunk. That should be a warning sign, in itself. As far as the busiprone goes, that also has negative affects when mixed with alcohol, but not quite as bad as Klonopin. Taking busiprone with Klonopin will have no complications, as they are completely different drugs. Now, keep in mind that I am not suggesting this, but if drinking on the weekends is more important to you than your anxiety, get off the Klonopin before drinking to excess. You will suffer less complications from the busiprone alone.
I can only offer my opinion, not dictate your life, but drinking and Klonopin really don't mix, and I'm sure you do not want to suffer the complications from mixing the two. And also remember I am not advocating heavy alcohol consumption while taking busiprone, frankly, I am not advocating heavy drinking in a short amount of time, whether you are on meds, or not. It's a lot more dangerous than fun.

Buspirone is not related to klonopin. You can take both. Hopefully in a few weeks you won't even need the klonopin anymore. Buspirone is a drug all on its own and is not related to anything else. You have to take it everyday for it to work, but after a few weeks it should be helping you. I'm not going to joke with you and say its fine to drink a lot with either of these drugs. Your dr is right. You have to decide what is more important, getting rid of the anxiety or drinking. I was in school too. I know its fun to drink, but I held a lot of hair back while my friends barfed and where miserable. I was always the designated driver. I got to take care of a girl who stopped breathing because she was on medication and drank when she wasn't supposed to on one fraternity weekend. You might even find out that its fun to remember what you did the next day, and not be hung over.