Thanks for the info so far!

and i also think it has to do with personality, which i dont think i have an addictive personality. like a year after my first time smoking i smoked everyday for a month or so over the summer then i stopped for like two years (Dont ask me why!) and now i smoke heavily again. well i have final exams this week for school so i told myself im not smoking until im done with my exams. i dont have any money or weed either so that should help! ill let u guys know if i feel a "craving" or anything like that