You need to reduce your BMI, and the weight should be between 60-62 kg. You are very young and if diet is managed appropriately, you will have great metabolism levels, which is what is needed for losing weight. Muesli with milk is an energy dense breakfast option, great start to the day. You can have a cup (up to 250 ml) of milk for your breakfast. Try and have 6-8 small but frequent meals instead of 3 big meals on your daily dietary regime.