Very nervous

Getting drug tested by a mass municipal job. I was smoking and eating edibles a lot up until March 10th. Have to go in for paper work for the job on April 17th. That’s 5 weeks but I’m nervous it’s not enough. Do you guys suggest I push back the date of paperwork? Or maybe try fetish urine to pass?? I am 5’10 135 pounds and like 6% body fat. Always been fast at metabolizing but am just worried I’ll fail for weed