You should reduce taking Milo intake esp if it is 3 in 1. Change your diet, eat in moderation and exercise according to your preferred ways. Like treadmill, jogging, brisk walk, crunches, sit up, bench press etc. Use waist trainer if possible. Dont rush on making changes, understand your body, do proper calculation of your body mass/body fats, etc in order to change your diet. You can also try intermittent fasting if this helps.