That sounds awful. Have you tried thinking what’s the worst thing that could happen? It’s no so bad.
Late start, traffic, late shuttle, understaffed security, long lines, construction, gate moved to another concourse, gate moved to another concourse - if you put enough buffer time in the schedule, you can still make the flight.
Doesn't matter, I'm wired the same way.
I could go on like this for an hour.
I’m not really that anxious 99.9% of the time, but add in the inherent stress of travel, especially if it’s for business, and we’re off to the races.
Orrrr, I could get there early since I’m awake and moving anyway, find a lounge, and have a leisurely breakfast and beverage before settling in with my Switch or an ereader. That’s my choice by a wide margin.