NYE coming; need support

New years eve is coming. We have a big fireworks tradition in the Netherlands. Someone just lit some fireworks in front of my house and i was suddenly reminded of how it is to be somewhere uncomfortable without being able to leave. Obviously NYE will be 100x worse. I'll be in the cellar but i wont be able to completely cut it out and im incredibly stressed

This is all a problem because of my hyperacusis, a manifestation of tms.

I was kind of gaslighting myself into believing itll be alright but after this im noticing the fight or flight is acting up and the fireworks havent even really started yet. I just want to get through this the best I can. Any suggestions?