I know not drinking is the best thing to do.. I just enjoy going to the bar with friends on weekends and having a few drinks. I rarely even get too intoxicated. I just miss they days where I could mentally recover and feel my brain working come Monday morning. Honestly the thought of not being able to have a glass of wine one a Friday night is more depressing than anything :/
Your problem is two-fold. For one, alcohol is a major depressant. You drinking is basically undoing anything the Celexa is trying to do. Alcohol alone will make you feel very depressed and anxious for days following a binge. The Celexa is trying to work, but doesn't have a fighting chance at that point. Not to mention, you shouldn't be drinking with this medication anyway...that's a given.
Really, your best bet is to stop drinking all together. It is just going to exacerbate any depression and anxiety you may have. I am an emotional mess the days after having a few drinks. It's just not worth it. You'd be surprised too, that you don't NEED the alcohol to have a good time. I know it's tough at this stage of the game at your age, but you'd be surprised how such a NON big deal it is, to you and your friends, if you just stick with a soda. Give it a try.
In the VERY least, don't drink to intoxication. That's when things really get bad. The only advice I can safely give you, based on the med, is to abstain all together...