1) Run

2) Jump Rope

3) Drink Water

Fun fact, everyone with a flat stomach and thin waist is underweight.

Stop using stupid labels and just diet and exercise until you are satisfied and your body has still enough nutrients per day. You cannot target specific areas of your body so if you want to lose fat you will have to lose weight all across your body.

You are likely Skinnyfat OP. Need to do more strength training and build up your abs. I was just gonna make a thread about this.

There's a saying in fitness which goes: "Results are made in the kitchen". Find a professional to help you get your nutrition in check, and couple that with strength training. But all the training in the world won't help you much unless you eat right.

Do you consume dairy products? They can sometimes cause abdomen bloat