What's up man. I'm 19 (20 in a month), attend college, and also have high career goals so I can relate to what you're talking about.

My philosophy is that I'm going to smoke for the rest of my college career and just cheat on the piss tests (it's easy) or just stop a few months prior if it's something like a hair test. I think I can control myself as far as knowing when I should and shouldn't smoke and that's really what you need to make sure of if you want to smoke while trying to succeed in college. Just don't smoke immediately before, or after you study for tests or exams.

It sounds like chiefing improves your quality of life a lot so why not continue? You just need to stay on top of your shit and make sure your grades dont slip. You're a 4.0 student so I wouldn't think you'd have too much trouble with your classes.

As the exceptional physcian Dr. Dre once said.. Smoke weed every daaay.