Got a question..need an answer soon..please help!!

ok so I went for a pre-empolyment drug test today...I haven't smoke in like 48 hrs but normally I am a heavy smoker..about 2-3 times a day...but I bought this stuff called strip nc and qcarbo...drank all of the strip..about threw it all up but i didn't..only drank about half the qcarbo..and about 48 ozs of water...waited like 3 hours..took an at home drug test...BBOOO and failed!! So I ended up taking someone else's pee who was clean..but when I got there she told me she wanted it up to a certain line...I had just about enough...but I wanted to be sure so I peed in it just a little...it was prob. like 3oz of clean pee to like a 1/2-1 oz of dirty...what do u think...do u think it will dilute it or am I screwed???

Please someone tell me what u think

I already took the test...so that's not going to work...