Nervous

I have my gym induction in about an hour and a half and I am nervous for some reason. I have face more challenging things than this, with more at stake, so why is this making me nervous?
I guess I am a bit worried about looking like a fool (aren't I always) as I won't know what any of the machines do (when I was a gym member before I didn't get a proper induction). But it must be more than that.
It may also be that I feel like I SHOULD be going to the gym and I am scared that, once again, I will not enjoy it enough to keep me interested. It is also another attempt by me to get a life. I have so very little going on in my life, and so few people to spend time with, that I guess I am hoping that this may lead to some new friendships, or at the very least an enjoyable pass time, to get me away from sitting in front of this bloody laptop all day, every day on my days off!
I will let you now how the induction goes later, and how fit this Adam is, who is going to be doing my induction.
Oh, by the way, I got an email from Virgin Active yesterday asking if I wanted to book my induction, obviously they do not speak to each other at this branch as I had already booked my induction the day before. I sent a blunt reply to the guy, after all he was asking 5 days later than I expected!