What to add to Urine to pass at home drug test

My parents are going to start testing me every two weeks. I failed my first at home piss test. I tried to drink certo but they didn't give me enough time. My question is what additives do I put in the cup or urine to make me pass. I've heard bleach, baking powder, maximum redness relief eye drops, salt, soap, or even putting water in the sample would make you pass. Do any of these or anything else work?? I need help asap