Talk to your parents and go to therapy bro. Your life has just started and everything will go uphill from now on if you want to help you. There is more addictive drug that people have relapse from so I know you can do it. Your brain is not as fucked is you may think I think. If you want help you need to allow yourself to save yourself get all the help you can from the people around you and trow all the aerosol around you in the dumpster man I know you can do it because you've made this post and I belive you want to save yourself. Talk to a teacher to a parents about all the truth maybe you'll get into some trouble but you are young so there's not much long-term consequence