I’ve been having anxiety over job interview?

I know this sounds ridiculous but i had a huge interview in which I flew out to another state like they paid for my hotel and flight and everything.

It was a series of 3 interviews with different managers. They gave us time to study for the role play as well as our notes an had current employees give us tips on how to succeed.

The problem is that in the first interview, I made a great connection with the manager but I noticed I stumbled to answer her questions like “what challenges have you overcome?”

The second interview. The manager did not look phased at all. She asked about my gal year in college as well as my employment. I was so scared this would hinder me bc i did job hop a lot.

Any advice to help calm my nerves? I’ve been unemployed for a few months and this is a great opportunity and I don’t feel confident and nervous and anxious. Like I’m literally shaking. Lol