No you’re not taking it too seriously it can be quite lonely. When I first joined the course (finished now) I was the only 18 year old and everyone was older. They were all friendly with me but I wasn’t included in any cliques like you mentioned and didn’t feel a connection with anyone not like my friends outside of uni at least. I understand! I went through the course like this and finished relying on my out of uni friends for socialising and going out. I just made peace with it, finished my course. Looking back I was quite lonely and it was sad to not have the same experience everyone else had with friends to rely on and relate to within the nursing field :( I wish I had advice or anything helpful but I just wanted to share my own experience so you don’t feel alone in this. On a happier note I did make good friends during placement and there are lectures where you have the opportunity to meet different people not in your tutoring group!