I'd take a break and maybe plan to cut back in general if you find it to be problematic. I can relate a lot to what you wrote. I've used thc from 11-22, practically daily from 15 onward and I'm in undergrad for bio and psych. It's how I've been copping with physical pain, anxiety, depression, ADHD and sleep issues but even with breaks it's becoming less effective at treating any of those. Although, I stopped drinking recently and noticed that it's been more effective since. Your school likely offers free counseling which can be a big help even if you decide to keep smoking. For me it was really helpful to talk and be honest with someone who is closer to my age/still in school. Good luck to ya