^^^ Bad advice. Unless you want to be pulled from school and put into a derelict public school and have your life further turned upside down and get even more restrictions. Which I don't think you do. Heck if you were pulled out of that school and brought home to go to another, your mom might even freak out enough that she'd call the police or something if she found more paraphernalia or weed.

I suspect it's time to toe the line for a while and play their game till things calm down and you can do your own thing agaiin. You've learned some important lessons about being discreet and keeping your business private. Five parental busts may be an indication that you're not ready to smoke yet, frankly. Discretion is one of the lessons people who want to use cannabis responsibly have to learn.

Give it some time. In the meantime, wage a campaign of information and education for your parents. Prove that your grades are good and that cannabis didn't do anything to interfere with your academic success. Print out some of the many good bits of information that are available showing it doesn't cause brain damage or ruin people's lives but is instead largely beneficial. And realize that as long as you're a kid and under their support, you may have to play by their rules. That's how it works. When you're grown and on your own--or when you go to university, which I'm assuming is the goal of your boarding school education--you will have more freedom to choose.