How do you lose weight from 63kg to 55kg?

I am following some diet tips and doing working outs to reach my weight loss goals. I am 25, consuming 1500 calories per a day in 5 meals (each meal containing 300 calories).
Taking mostly 30% fats, minimum 30 % proteins and the remaining will be carbs.
Taking more and more water, minimum 10 glasses per a day.
Doing cardio 4-5 times in a week (5-6 hours per a week).