My classmates seem to crowd me out. Most people often curse. I feel out of place with them.

I have also experienced this situation ~ It is important to get along well with my classmates, but don't deny yourself because of your troubles. \^O^/ It's not everyone's ability to keep inner purity. If you do, it will be a great wealth in your life, and no one can envy it. I don't know your age, but you should be very young ~ children are prone to such frictions and contradictions. When I grow up, I won't have such obvious attacks. Children are still very simple.

Don't be influenced by such questions ~ face life positively and openly, and everyone will like you (= ω =)