Can you get addicted after using crystal meth for 1 week?

Not until you begin finding it difficult not to take it, which seldom takes very long.

I believe it all depends on the person. Some are hooked from the first hit and some find it extremely easy to be an occassional user. Alot of people say there is no such thing as an occassional meth user, but really there is. Meth is a mental addiction not physical so someone with an addictive personality has a much bigger chance of letting the meth control them instead of them controlling the meth. it is possible I have crossed the line, then found my way back to the other side and I became strong enough to use only 2 or 3 days per month and be happy with that.