There's plenty of products on the market that will help. Over a decade ago I took something called Ready Clean. As far as I know it worked fine. Passed the test after having smoked a few weeks earlier. Did all the other same stuff you're now doing and drank tons of water. You'll be fine. All these bozos posting that you're screwed need to stop sitting in their dorm room or mom's basement and go out and have some social interaction.