Is it Okay to have gone behind my parents back?

There is nothing to do but wait, im sorry but your mom needs to give you a longer leash. I think you two should have a talk and you should tell her that if you have no experiance what so ever with boys then you will never have neccisary experiances with adult guidence and you will have to end up learning on your own when you leave, or say kids with less liberties are more likly to rebel and do it anyways, but secretly in which case you still dont have parents to help you! Ignorance is not a good thing the more hidden from you it will be when you do learn.