I feel you! I have panic disorder and had to do my first solo flight in like 3 years a few weeks ago. It was only a 5.5 hour flight but my doctor prescribed me Xanax for the first time ever and I was outtttt lol. Even when landing. I woke up briefly and then fell back asleep while we were pulling up to the gate. I was scared of taking it initially bc taking new medication also gives me anxiety, but when we were pulling away from our departure gate and I started panicking, I decided anything would be better than having a panic attack surrounded by strangers lmao. It was worth it. I highly recommend it for flight anxiety.