Every freelance web designers want to go higher level at some specific point of their career. They want to accept new design challenges and want to increase their bank balance. But the majority of them won’t reach that level of career where they won't be and this cause due to lack of knowledge.
To become an entrepreneur, you need to take some responsibilities, a few extra projects. You need to learn marketing to market you and your skills to becoming a business.
The transiting to business from freelancer need to understand the real value of price for everything you do. You need to fully understand your cost. Applying a value to your price is important