Why fats are hard to burn?

I've been doing some daily exercise but it seems its not even working. My belly fats sucks. But I know, I'm not the only one having fat problems. Everyone walking on the face of this earth has an abundance of fat cells throughout their bodies. In fact, if you're a healthy adult with normal body composition, you have approximately 30 billion fat cells. Scientists believe fat cells are part of our genetic code and they allowed us to use stored energy when food was scarce. When you consume too many calories, your body goes into storage mode for that "rainy day," so to speak, but the "rainy day" does not happen. So your body simply stores those extra calories as fat. When you eat less calories then your body demands your cells release stored fat for energy. Pretty simple equation, however it does not appear that all fat is the same. The placement of fat deposits on our bodies varies depending on each person's genetic influences, lifestyle choices and nutritional intake. Men tend to store their body fat around their bellies and chest. Women tend to store it around there hips, buttocks, thighs and back of their arms. Fat is metabolized extremely slowly and is resistant to the hormonal process that takes place while the fat burning process is started up. To burn fat, the adrenal hormones better known as adrenaline and noradrenaline, attach to the fat cell receptors and essentially "open them up" so the fat can be used in the energy pathways. There are two kinds of receptors in your fat cells: one is alpha and the other beta. The beta receptors are much more active and respond to adrenal hormones. To lose body fat, the adrenal hormones switch on and the body begins to use fat as energy. However, in the case of people with stubborn fat, this does not occur, so no body fat is lost.