Unless masturbation gets in the way of going to school or one's social life, it is considered normal. Young adults often talk a lot about sex. Many teens talk about sex even though they have not had sex. Sometimes people lie and say they have had sex to seem cool or grown up. In reality about half of the young adults in a high school have never had sex.
Sexuality is very complicated.
It takes many years to become clear about what is right for you in regard to sex. However, if you have doubts about it, don't have sex. A healthy sexual relationship is respectful and safe. Forcing someone to have sex is never OK, it's rape. Tricking someone into sex is not fair.