There are a lot of people who overwork to get what they want. Some people are putting in 15 hours a day to keep their businesses alive. Revenue could be pouring in, or there could be no revenue pouring in.
If you find yourself spending 15 hours a day on your business and making little revenue for yourself, you need to change the way you work. We are creatures of habit, and change can be annoying as I described in my post about dramatic changes.
However, those changes will have to happen. Cut off some hours you work by addressing how you waste your time working. Talking to the same person who doesn’t care for your business is unproductive.
There are plenty of things that you are doing wrong if you are working for 15 hours a day without getting much revenue. Overworking also prevents you from doing more important things such as growing your business.