BIGNOSE

I am 27, 6'2", and about 225 lbs. I have smoked on a regular basis for the last 10 years. For the past 4 years I have not been active what so ever...constantly behind my computer.
I mainly smoked b-loads and blunts. You could say in the past couple of months, a blunt per evening.
I last smoked December 26th. Since January 6th (two weeks ago), I have began a low carb, high protein diet. I have been drinking 1 gallon of water per day, along w/ taking fat loss pills and colon cleansing pills. I have also been working out at the gym, running a minimum of 3 miles or 45 minutes. I have lost 10-12 pounds in this two week period.
I am scheduled for court on the 7th of January. I would assume that I will have to piss sometime near that date.

1.) Should I continue to work out?
2.) Should I continue to drink water?
3.) Should I plan to dillute?
4.) What precautions should I take being that I have an additional 2 weeks before my pisser test?

Any recommendations/opinions will be greatly appreciated!!!!