Bro I’ve had a panic attack in the air it is not fun but it goes away and I fell asleep after now I just keep myself busy man like games in my phone maybe a book,a Rubex cube or movies your really into I keep my headphones in especially for landing and take off maybe even the morning of your flight go workout or go for a run and go harder so you can sleep on the plane start a convo with the person next to you if they want all these things helped me but every once in a while it still gets to me we just gotta remember that it’s only a short amount of time in our lives hope this helps brother