Ladies please help me out

Recently I have been feeling little horny, like I would imagine myself doing those things(yk) with an imaginary guy😭 I tried myself controlling a lot but my mind isn't in my control...I would always be just filled with guilt for imagining something like this cause I'm not 18 yet(so ridiculous reason, ikr)
My body feels different kind of..in need of those touches.. It's so disgusting and embarassing, ik😭 How to deal with this??