You just have to decide you’re going to take the plunge and do it. I still get nerves after multiple sessions in multiple places.Hell I used to get nerves before doing an extreme session with someone I was dating.
That little voice in your head that says things like “This could be a total disaster”, “Fantasy might be better than reality”, “This could be a scam” “What if she doesn’t know what shes’s doing and I get really hurt” or any of the hundred other things I’ve heard or bought over the years... Tell it to shut up. It’s just holding you back.
Life is for living and I’m confident you’ll have fun at the Fortress.