I have an addiction to marijuana and cigarettes....?

and I am trying to quit both cold turkey.....what are some of things that i should watch out for or know? Also...I need to know how long until I will piss clean? I was a regualr user as of 4 days ago, smoking approx 3 blunts a day

: http://alcoholdrugstreatment.info/i-have-an-addiction-to-marijuana-and-cigarettes