Already failed once, my last chance PLZ HELP

On 9/12 I had an interview at a car dealership for the role of internet sales rep and they have been super adamant about wanting me to work there. The money is 6x what I was making while working at Starbucks, a job I had to be high to do well in, often smoking in the bathroom every 2 hours. I’ve been dependent on weed for about 2 years now, literally hitting pens 24/7 to the point my tolerance got so high I out-smoked an entire party and was going through 10g of dab a week (not saying this to brag or anything, just clarifying how much weed I was consuming on a regular basis). For reference I am 100-110lbs, 5’2 and I have a somewhat muscular build. Idk if that helps but it might.

The interviewer was super upfront with me and said if I have to fake it that’s fine, saying half the guys in the office do coke and they don’t care what I do as long as it looks good on paper. I stopped smoking the moment I got out of that interview and unfortunately went through withdrawal due to the amount I was using. I had combed the internet for detox products as I didn’t know if I could pull off sneaking something in with me (I now know I can). I decided to try QCARBO detox bc the reviews were really good but I ended up throwing it up bc it was too much liquid. I miserably failed the first drug test but they’re giving me one more chance. I thought about having someone pee for me but everyone in my life smokes, drinks, or is on prescription medication that I am not on and will be detected on the 10-panel test they’re conducting.

I just tested myself again this morning (10/8) and it came back positive. I don’t think anything is going to be able to detox my system naturally before 10/19 (my new testing date) so I was thinking of getting synthetic urine. I’ve been recommended upass but I’ve seen differing things about its efficacy. I’m pretty sure the lab that’s testing my sample is labcorp in NC and I saw one or two people say labcorp detected synthetic urine while using upass. I am broke af so upass seems like the best option but I have so much anxiety around this bc I can’t find the same job somewhere else as it seems they’re all filled and bills are piling up.

Any input would be greatly appreciated, please help I am freaking tf out as I want this job more than anything atm.

Thank you in advance, I will try to update later with what I choose and if it works.