as its been said before, tolerance takes a while to build. my first like 20 times gettin high i had the trippiest experiences ever. dont worry about tolerance for now (even later, a 2-3 day break will somewhat fix it, and a 2 week break will completley fix it). enjoy your high on 4/20, and remember to have milk, water, pop, food, whatever else you would need if you plan on smoking lots. your throat might get really sore, just drink some milk and smoke some more. have fun!