Go and see what it is like. If you don't like it, you can reapply for a different course at a different uni for the following year.
Oh coruse, I would also say go to York and forget Plymouth too.
You might have felt out of place on one day, but trust me, you won't be the only person feeling like that. Many people will, even if it is not true. You wouldn't have been accepted on a course if you weren't good enough would you?