Nope. Diluting will not help you here in my opinion, you have smoked far too much. Dilution is not substitution, you cant smoke up to before your test and expect to pass. It is a technique used in combination with abstinence and exercise. Feasibly you are screwed. I wouldn't suggest a qf because its a probation test... maybe for the drug class depending on whether or not your supervised. Good luck, but man you've probably cut it far too close.