This Is Super Embarrassing, But I'm Fifteen And I've Been

This is super embarrassing, but I'm fifteen and I've been masturbating for two years now with a brush handle.. I do it almost every day except when I'm on my period and I bleed every time. I googled it and some people said it could be from cervical cancer to a vaginal tear. I don't know if it will affect me in the future, and I want kids. I'm actually scared to know what's wrong with me