Change your diet! Remember, your physique is 80% diet, 10% exercise and 10% genetics. So, if you cut out the high sugar, high fat, processed foods and replace it with a healthier things, along with lots of water, fruits and veggies, then you should already see a change. Do some cardio! Cardio melts the fat away. And, to target the stomach... search up pilates ab exercises they can be super tough!