I just started a month long class for work in a town that I have never been. I feel so isolated in my hotel by myself.
That sounds lonely. Maybe you should try to hang out with some of your classmates?
They are all a lot older than me.  I would feel out of place.  I just wish there was someone my age I could hang out with.
I hear you. At least it is only for a month. Maybe you can make some weekend trips to do fun things.