I suggest stop smoking right now, like this minute...Dilute yourself with water, drink like as much as you can instead of coke and fanta, just drink water...but try urinate like atleast 3-5 times a day. If your urine is still yellow it means it's still there, the certo you've bought um 32oz in packet of 8 oz... well go buy gatorade (only gatorade)... mix it with it...you can do either the hole 32oz at once which will make you piss alot, or u can do it in sections and split it over all day and urinate...there is no window really once it's out it's out...it wont come back in, just make sure you dont turn paranoid or stressed becoz that can trigger the effects to thrive in your system