what should i do?...parents please respond?

Ok,im 16 a girl,and...and idk what to do....
Im always a good girl.i try my best not to be a statistic,and i did my best in health class to know everything i can. I dont have sex,i sit around people who smoke and drink that are my age but i do my best to resist the peer pressure.i know im a buzzkill but i know doing drugs and getting drunk is bad,and i saw what it can do.(lets just say it ended with my two friends getting high,drunk,and having sex with one of their 21 year old boyfriends in a hotel while i cleaned them up and put them to bed afterwards,and having conflicting emotions about weather to tell).but i try to be responsible.

I stole my moms vibrator way back.she bought another,and figures she just lost the first one in the move.i use it almost every night,but a couple of times i almost got caught.i feel like i have to hide it from her.i feel like if she knew i had it shed think im spiraling into bad behavior,when i really just use it as an alternitive to sex.i dont want to do anything with a boy untill im older.but ive heard that a vibrator can damage you sexually for your future partner,and i dont want that.i have a boy that i like and he likes me.i found out we had secret crushes on each other when we were younger and he moved away.like one of those cheesy soap operas.we have no interest in having sex right away(especially since were states apart)we made a pact that when we get a bit older,he'll cone back to see me,and i dont want to be dissatisfied,since i want him to be my first.but what am i supposed to do? Its bad if i use it,but its worse if i go out and have sex! I thought using it would be a safe way to get rid of urges...(and fingers never did anything for me ever,idk how women can get off of that) the point is,i wanna know is, is it wrong to use it? Even though im using it to be responsible?