I have been in your shoes, actually was in a similar situation a little over a year ago. IMO and IME getting high isnt worth rehabs, jail and being homeless. That's what happened to me, and it was the worst year of my life.
Watch yourself man, don't think your smarter than your parents because the cockiness and comfortability will get you caught when you start to feel assured and complacent, that's when shit hits the fan, or atleast for me.
Stay safe man, and keep time in between your use. The more you use, the higher of chance you will get caught.
Good luck