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.
There is one important thing that you should keep in mind – that you may not end up losing as much weight as you want to. The initial few kilos/pounds will be easy to shed, but after that, it can get a little tougher. The weight loss won’t be as drastic as it was. But the thing is, you are making changes to your lifestyle and heading down a path of better health. Sustainable weight loss is better for you in the long term.
While some athletes eschew cardio, that doesn't mean they don't integrate metabolic "finishers" into their resistance workouts. "What's worked for me in the last few years for fat loss has been adding in short, 5-10 minute finishers after my strength-training workouts 1-3 times per week," says Cappotelli. "A few examples are several sets of heavy farmer's walks, battling ropes, double-unders (jump rope), kettlebell swings, and prowler sprints, or a combination of those."
Avoid Junk Food – While you are at it, make sure that you do not eat junk food by any chance. By eating junk food, you are creating your chances of getting slim, very slim. Junk food like fries and burgers and flavored sodas are the worst enemy when you are aiming to lose weight. Instead of snacking on these, you must eat nuts, and fruits when feeling hungry. https://www.youtube.com/watch?v=TyXnVTALGM0