I've only had minimal exposure since I got sober (about 14 months) and I understand your fear. I think it's normal and I have it too.
I know in AA, we say once we are recovered (having gone through and honestly worked all 12 steps), we can go anywhere provided there is a reason for us being there.
Even if you're not an AA'er, I hope you can get something out of that.
Good luck tonight...and...enjoy yourself
Kjell