Want a vibrator but can't get it?

I masturbate but I can't get an cuz I don't know how so I thought that if I get a vibrator I might be able to get one but the problem is that I don't have a credit card to buy one online and I can't go to a store to buy one. I don't have any money. I'm 17 by the way. Besides that, I always ask my dad to take me somewhere. (mall, restaurant, etc) should I just wait til I'm 18 to buy one? I don't really want to wait...