What is your height and weight, physical activity level, and smoking history (how often, how many times, how much quantity)? Before you even answer this I am going to say your best bet is substitution. You can't flush or clean your body out with all that stuff you are doing. If you have head shops look for Quick Fix which is around $35. I know you said you are broke but you will make that back in your first paycheck. You can also get it from a clean donor. I know you said that was hard to find but you can use male or female, young or old.

Smokedoja, let me guess your PO used instant tests. The OP is going to be taking a lab based test. There are different methods to pass those two different tests. Also, you may have passed but you passed without understanding how in the blue hell you passed. Obviously you have never subbed for a lab based test so just tell them to read the sub sticky instead of giving horrible advice.