Do you have low body fat? Idk how true it is but I’ve heard it leaves your system quickly if you’re skinnier, I knew someone who smoked the day before and passed a test but he had basically no fat, he drank a bunch of water and something else like cranberry juice before because the test won’t pass if you dilute it too much. So I’m not sure about the details but it’s not impossible you could pass. You did mention your metabolism so maybe!

Hope it works out though, drug tests are bullshit. They don’t even catch a lot of drugs, most harder drugs leave your system more quickly so it’s less likely to be detected, it’s mostly stoners who get punished by them.