I have a drug test on Tuesday. I am only concerned about THC in my system. In the past 2 weeks i smoked probably 3, 1 gram blunts on both saturdays and on both sets of mondays and wednesday i took maybe 2 hits from a gravity bong, each monday and wednesday. I am 19 years old, 5' 8" and about 130 pounds and have 3-6 percent body fat. I'm a regularly fit kid but havent really worked out in about a year and a half. Ive been drinking a larger amount of water than usual and some cranberry juice. I have also been taking 1 niacin and 1 B-12 pill daily for about a week now. I purchased STRIP NC as an extra to help me pass, do you think I will pass the drug test? Also, substitution is a possibilty I have thought about but I know nothing about it, any help please!!!