For me personally, its not that I'm unwilling to try new things or that I get anxiety from it its just I would rather not do them. For instance, I will watch TV shows that I have seen every episode to over and over rather than starting a new show. Part of this has to do with me not wanting to get attached to something that might be cancelled, but that's neither here nor there.
Also, I have trouble listening to music that I have not heard before. For instance, there is this album by one of my favorite artists that has been out since last march, but I have not, as of late, been able to psych myself up enough to listen to it.
I had the same experience with college orientation. I will say this though: When I do new things I become less reluctant to do them the more I put myself out there. I have anxiety at the first day of class every year since I started college in 2012, Now in a masters program I still have anxiety of whether I am in the right room, did I misread the classroom number, am I put together well enough, can I be articulate today or am I going to come off as crass today, and so on.