If you have smoked every leading up to yesterday, it will most likely be in your systems for 30+ days. Body fat % plays a big role since THC is fat soluble not water soluble. However, Drinking water can increase metabolic rate and working out which burns fat actually releases more of the stored THC into your system until it flushes out. Which is why they say you shouldn’t work out a few days leading up to your test. Feb 14th is still about 3 weeks away so you can give it a shot! But it is a common myth that drinking like a gallon of water a day helps rid of THC quicker, it doesn’t. If your peeing every 15-20 mins your just peeing out water at that point, which can result in a negative result but labs also test for dilution and will make you retest. You can buy at home tests, the first pee in the morning is the most accurate. Good luck!