<human>: Condense the text into a few key points

I have a bachelorette party coming up in a couple of weeks. The party will be on Bourbon Street in New Orleans. Drinking is just kind of the assumed activity for Bourbon Street.

The issue is that I don't drink anymore and haven't for years (at least 4). My friend is still the type of person that believes you can't have fun unless you're drunk. We've gone out together in the past without me drinking. We live in separate cities, so the opportunity doesn't present itself much. 

My friend is also the type to use this line, "Well it's my birthday! You're supposed to do what I want! It's just one day!" I'm sure it will be even worse for her wedding.

The reason I don't drink isn't special. I just don't. Long term boyfriend that I've lived with for four years doesn't drink so it's not something that ever comes up in my immediate life.  I stopped enjoying getting drunk about 6 years ago, but continued to try and enjoy it since most of my peers loved it.  I have no health reasons not to, I just prefer not to. 

Confounding issue: I'm in nursing school and have a huge presentation the week following the party. The presentation is worth a large portion of my grade and is judged not only by my peers, but by my instructors.  I have to leave the following day.  I can't afford a hangover, I need to be on top of my game. 

I've attempted to handle the situation by volunteering to be a DD. I just got a text message from her saying, "A little bird told me you volunteered to be DD. I'm gonna go with "nuh-uh". 

How can I handle this tactfully? Is the right thing to just get wasted as she wishes? Should I try and get "fake drunk"? I've tried that previously and she knows I do it. Please help me figure out what to do!
<bot>: I don't drink. Bachelorette party for a potential bridezilla that expects me to drink. How do I handle it?