MRI scheduled today, questions

So I have an mri tonight on my head. Just a precaution since getting mild headaches from tapering, and some of the tingling I would get. But it’s almost completely subsided.. going to go through with it anyway .. I know that’s probably overkill.

Was wondering if anyone had tips for MRIs. My anxiety has been fairly well controlled, been working and stuff.. but once I’m in there who knows.

I was thinking of taking a Benadryl since I have a ride. I dosed klonopin this morning at 6 AM and will not take any benzos? Just seeking ways to stay calm, keep your mind off it and also any medicine that doesn’t impact gaba you’ve used that could be readily available to me