Help. My clinical group dislikes me.

Hi everyone, I just started nursing school and I need advice on how to get along with my clinical group. Ever since day 1, I have always been nice to them and treated everybody with respect, but for some reason they don’t seem to acknowledge me, ignore me, or look at me in annoyance whenever I try to start a conversation with them. They all have gotten close with each other and laugh with each other, but whenever I try to get to know them, they leave me out and distance themselves.