Going on a trip soon, and I am getting super anxious

I'm leaving for a trip in three weeks, and I'm already getting scared. It's just the fact that I'm flying and anything could happen...

Soon, I'm gonna be spending all of my time into my fear, and I'll have headaches and nausea.

The fear gets worse each flight. Last year, it was pretty bad, so I can expect some major anxiety attacks.

I just need some support, or at least an 'it's gonna be ok'.