Start with warrior diet or intermittent fasting. The best part of it is you can have ur favorite food items too. I had personally lost 7.5 kgs in 1.5 months. Go research on it!
It would be helpful it you'd tell us what you're doing to lose weight, so we can tell you whether what you're doing will be beneficial or not... It would also be helpful if you could tell us how much weight you're trying to lose and the time frame in which you're trying to lose it...
The best tip I can give you is to implement a plan that includes a healthy diet and moderate exercise.