“But Jon, won’t I piss every 30 minutes?” I can hear you say. Well, you will at first. But after your body adjusts, you’ll only pee a few times a day. And even if you do have to pee a lot more, isn’t it worth it to torch off pounds of fat? Just do GOWAD until you’re thin, and down the water intake if it makes you pee that much. Don’t be a bitch and make excuses.
Listen to your mum - dieting is faddish. Instead, improve the "quite" to "all" healthy and eat only nutritionally balanced, healthy foods. Cut out all sweets and junk foods, apart from an occasional treat, as humans would have always done till recent times. The exercise is important, and include plenty of stealth exercise, such as taking the stairs instead of the elevator and cycling to the shops instead of driving, etc.
Weight loss isn’t a linear event over time. When you cut calories, you may drop weight for the first few weeks, for example, and then something changes. You eat the same number of calories but you lose less weight or no weight at all. That’s because when you lose weight you’re losing water and lean tissue as well as fat, your metabolism slows, and your body changes in other ways. So, in order to continue dropping weight each week, you need to continue cutting calories.