Decent OTC medication?

I made a thread here about flying to AUS for vacation 2 months ago. Thank you to everyone who tracked me 😀

Now, I have a 12 hour return journey coming up on a 777 ER, from Brisbane to San Fransico. I'd rather take the 787, but it's actually longer at 13 hours. 1 hour less is fine for me.

The first leg coming here was easy. Funnest flight in my life honestly, felt like playing a video game. I was high on about 50mg of THC and 100mg of Benadryl for the first leg. Go california 🖖

AUS has no OTC weed unfortunately though, so I cant have fun going back. My anxiety and panic level is probably higher than most in this sub--I usually lock myself in the bathroom for the entirety of the flight. Or run out the plane right before doors close and cancel my ticket.

Are there any decent OTC meds to calm anxiety? Benadryl by itself, does nothing for me, unless I have THC.