Why does my bitcoin wallet remain empty day after day after day?

It may be difficult to have folks simply donate to you. You may have to offer a product or service in return.

Update: You ask what kind of product or service to offer? That is the heart of capitalism. You need to offer something of value to people who are willing to pay to receive them. Do you have specialized skills - such as programming, writing, business planning, technical consulting, etc? If you have no skills, you will not be able to earn money. And that is why education in college is so important - it equips people with skills necessary to enable them to earn money.