I’ve been a mess all morning

I am flying in 2 hrs from LAX to PHL. It’s a flight I’ve done multiple times a year ever since I was a baby to go see my family. My flight anxiety has worsened in the last 5-7 years and especially after the DC event, it has completely spiraled. I’m flying alone today and I have been inconsolable all morning with anxiety and fear and want to cancel my flight. I’m in my uber already but ready to turn around. Any support or advice is much appreciated.