Stupid OPK

So I started using OPK's this cycle. They are driving me crazy. And I am already pretty crazy!! I absolutely CANNOT hold my pee for 4 hours. I barely make it to 3. So my day goes like this. Make sure to pee right before 9am as well as chug a diet coke, because you're not supposed to have anything to drink either. About 10am I have to pee SO bad, due to said diet coke chugging. But I still have 2 more hours to go before I can pee. Thus far, all tests have come back negative, which is always dissapointing. After the noon OPK, I go home eat luch and have another drink, and be sure to pee again, because I have to start the process all over for the second OPK of the day. This having to pee ALL OF THE TIME is super annoying. I better get a + soon!