I don’t know what you want to hear. You seem to understand the right thing to do and the potential consequences. There’s no easy way here but I know the decisions I’d be able to best sleep at night having made. When it comes to kids safety and well-being, helping a kid on meth takes precedence over potential reputation damage.
Another way to look at it… isn’t giving drugs to ”underage” people (children) pretty clearly child abuse, and required to be reported?