People don't take me seriously?

Ok 'ello ppl I'm 13 soon to be 14 and I'm in the 8th grade. I hang out with a group of friends that half of them curse and the others don't. And it seems like EVERYONE in my school curses even the teachers and the 6 and 7 graders. When we are reading a book in cl and someone curses i skip over it and the teacher gets mad at me. It seems like no one takes me seriously because i wont curse. and since im like the top dog in school now since im 8th, what am i going to do in high school? my parents dont care if i curse. what should i do?