I'm having a hard time fitting in at my school as a freshman... any advice?

Okay, so last year, my best friend was sort of the emo type and she kinda got me in that style. Before I met her I was kinda girly and stuff… but I didn’t reall know who I was. When we hung out I dressed up in her clothes and I started acting like her a little bit and that’s when I felt the happiest. I felt like I could be myself. Than over the summer I started dressing like that and I felt totally happy and like myself! But now I’m at a private small Christian school and I am too afraid to be me. I’m dressing how I did before… and I don’t feel right at this school, I don’t feel like I can be myself, and I’m too afraid that if I do be myself than I will be seriously judged. Do you have any advice? I’m in a tough situation… please help.