I thought that other posters had agreed that it is unlikely to stop after taking 2 shots on 15mgs of valium, being that the OP is 15yrs old, so it is quite possible to do something that can get you arrested at that dose.
Also, it is unlikely for that to happen at that low of a dose, but it can happen. Don't say it doesn't happen at that dose. When I was under 21 I sure drove after having a few shots and 1 mg xanax, when I normally wouldn't have. Zero tolerance law could have had me locked up.
Sick harm reduction mod in training