Drug test tomorrow tips

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I haven't smoked in a little over a month, can't even remember what the exact date was, but it was certainly before 1/11 and after 12/26. Before then I was a heavy user of potent weed, and tried to detox intentionally by fasting for 4 days, only liquids no food. Got a job decided to smoke a little in celebration once or twice (the in between 12/26 - 1/11) and got VERY high, affirming that the detox probably did work, for my tolerance was nothing.

Tomorrow, I have a drug test, and just want to absolutely make sure I'm in the clear. I've read and heard various tips to increase the chances you pass like drinking tons of water, b12 to make urine yellow due to it being clear from tons of water, eating fatty foods a few hours before the test, using the "midstream" etc

Anything else I can do to increase my odds?
Also note I have an incredibly fast metabolism.

tl;dr: Drug test tomorrow, haven't smoked in about a month, what other things can I do to increase my chances of passing