How do you all keep calm flying?

Was on Leave until Friday, I had a late flight as I try and prolong my time back home (nyc) to as late as possible.

I've flown before multiple times, i dont get airsick or anything, however, I get an intense amount of anxiety that seemingly comes out of nowhere

(This does not occur when I fly out of where im stationed at, if anything, I am overcome with an overwhelming dense of relief, almost as if a huge weight was overcome.)

Waiting at the airport, I remember just feeling ny heart rate go through the roof, part of me felt as if I waa gonna crash out or just burst into tears, even though I shouldn't, I shouldn't feel like this.

How do you all keep calm before flying, last time flying i bought those little bottles of Vodka just to knock me out flying back, but isn't a solution, just a horribly used "bandaid" if you even want to call it that