I am 6 foot 185 lbs at age 18 with an athletic body and high metabolism. I also workout 3 time a week. I was completely clean 1.5 months ago and i have been smoking every day since. I plan on detoxing with 1000mg niacin, psyllium root, and water, but i'm hoping to just let me body do it naturally without relying on these pills at all. I plan on stopping 3 weeks, that is 21 days, before my ua. Will I be in the clear? I know there is no way to know exactly because of all of the factors, but i would love to hear your opinions! thank you