Tips for going on roller coasters with GAD?

Hello guys!

I'll keep this as short as possible, but I'm considering getting a one day pass to go to universal with my friend for her birthday. The issue is that I physically cant handle long lines for the "big" rides.

I love roller coasters, but waiting in line for longer than 20 minutes causes my anxiety symptoms to multiply so much that I get physically ill. Last time this happened I was only able to go on one ride and had to basically skip out on the rest of them because I couldn't handle the anticipation. I even tried to go on the Hulk and nearly threw up seconds before I got on the ride and had to leave. It was so embarrassing, especially as a guy. I feel like I'll just ruin my friend's birthday if I dont get this under control.

I dont know what it is, but the queue is so foreboding that it gives me a sense of dread, like im waiting for my inevitable doom or something (sounds dramatic, but sometimes anxiety can be extra with the paranoia). I even have hydroxyzine for this but not even that can handle the pre roller coaster anxiety/excitement combination. Does anyone have any ideas on how I can cope through this? Im pretty certain I don't qualify for any special accommodation since its literally just anxiety, so anything helps!