Hi , this is a difficult situation and understandably worrying. My daughter also 17 started with cannabis and is now addicted to Xanax. A drug I haven’t heard mentioned on here.
The problem is probably the friends she’s hanging around with, peer pressure etc
Hopefully she won’t take this any further. Yes it’s worrying she smokes cannabis , if this is all she does and doesn’t progress to anything else then that really is a blessing .
Hope this helps ?