Most flights give you enough time for the layover and airlines go out of their way to get you on the flight if you get delayed and have to cut it close. I probably take many more flights in a year than the average person and despite my tendency to always be very late, I’ve only ever missed a flight once. If that happens they just put you on the next flight.

As for safety and security, although they’re crowded, most airports in the world have a large number of cameras and police making them very safe places to be.

I hope that your flights are smooth and your anxiety eases for your return as you arrive at your destination. You can also try the accupressure point right behind your earlobes. Firmly rub them counterclockwise, it may also help you relax.