Drug Test in two days Help Plz

i have been clean for about 2 1/2 weeks (16 days) i would smoke a bowl everyday for over a year before that. I am about 5'8 180 lbs not fat but i got a little gut. I just took a home drug screen and i came up positive today i didnt try diluting at all i just wanted to see if i was for sure gonna pass. What can i do from now till tuesday to get myself clean or if its not possible then will someone else's urine in a pill bottle straped to my inner thigh do the trick? i really dont want to try substitution if i didnt have to i think i'd be really nervous about the body temp and stuff. Any help would be appreciated.

Anyone with some help? Should i go Dilution if so whats the best way to do it ? and does it have a high chance to work. Also could go to a head shop and get a drink but not sure how those work and which one to get

get some synthetic urine delivered overnight

to late for that now anyone else with suggestions?

Get one of your friends clean urine. Put it in a condom & keep it close to your body to keep it warm.