You smoke crystal on Friday night and get drug test on Tuesdays will you be okay?

i used to get drug tested on tuesdays then go n smoke rite after and i would smoke up until Thursday but then stop n i would pass everytime i never chanced it i at least gave my body four days .. but there is a possibilty that it may show up i really dnt no just drink alot of water eat healthy like fruit and veggies and pee as much as possible i used to also drink a cup of water with a table spoon full of baking soda mixed in .. but that's all i have for ur question good luck