Drug Rehabilitation that works

If yes, how long will it stay positive in your blood and in your urine?

I heard that Ecstasy is always cut to make it go further and now that methamphetamine has become more popular and is really cheap methamphetamine is being used to cut Ecstasy. And everyone seems to have their own idea of MD-MA or what Ecstasy is — and what it is or is never cut with.

I hear it is all cut and anyone that says they have pure is probably full of shit.

I know it depends on body weight and all; the character is an average height female, slim build. No tolerance.
I’m not suicidal, I’m writing a book.

Im worried about a friend, their planning on doing crystal, ice and alcohol on the same night. I dont have much experience with drugs so I dont know what the combination will result in. Can anyone help me out?
I know it’s dangerous. Ive tried to talk her out of it, but she’s a stubborn one..
I need to know what the effects will be so I can be prepared.
Who has done it and can tell me?