Am I likely to pass a test?

I got a possession charge and I'm going to submit a voluntary test before my court date to help my chances of not getting probation because it's my first offense.
I'm 5'9" about 155lbs. with very little body fat and I worked out almost everyday up until I got charged and then I stopped (mostly because of exams for school and I work a lot, etc.)
Its may 3rd and I haven't smoke for exactly a week, but I also haven't been working out or eating very healthy. I'm just wondering about how long it would take before I would piss clean so I can go in and take a test.
I'm going to start working out again tomorrow and if there is anything else that would help, I still have at least another week until I have to go to court (probably longer because I just hired a lawyer) so I'm open to any and every suggestion.

Most take 30 days , some more some less. everyone is different. I would do the home test and see for yourself.

I would read the dillution sticky and follow that the morning of the test.