Drug test in a few days

Hey everyone trying to figure out what to use to help me get my job promotion. i was wondering if Quick Fix 5.7-1 the one that is bought from the website off here if it still works. i was also reading other post and was seeing diff kinds of test that they use so i was worried about that but this is just a simple job test so im hoping that it would be okay to use for that. also if i went with getting a friends pee (clean) would the same method used for the quick fix work for keeping it warm and also where and with what is the best way to tape this or hold it lol as you can tell im just a bit worried but also don't really wanna lose this opportunity. Sorry for the nervous rambling just question i had in my head lol