Nervous

I'm a little nervous about orgasming because when I rub my clit it feels very overwhelming and hurts a little bit. I'm almost 15 and I really don't want to talk to my mom about it. I don't want to talk to my mom because I know she'll tell my dad I don't want him to know. I didn't even want her to tell him when I got my period. I don't want her to tell anyone but I feel like she would make fun of my in front of everyone or worse yell at me for doing it.