Older Naturist My Sister Is Naturist?

My sister is naturist? - older naturist

My whole family belongs to the same community respectively. My father died in a car accident. I lived with my mother and my sister. My sister is older than me. The problem is that my sister is a nudist. He also spoke with my mother, but my mother shocked and never gave permission. Desider but last week, and started as a nudist, and hear about my mother. I feel very uncomfortable with my sister, I do not see all the regions. I think I'll go crazy. What should I do? (Sorry, my English is very bad)