Choosing your market can be easy or challenging for someone, especially those who are new to Freelancing or those who come from the corporate industry and are having a hard time understanding the importance of why everyone asks you to choose a market before you even start freelancing.
Below is a video from the Disruptors Challenge that has been the first six days of the Dojo opening up to the public, which you can also find in the community's guide section.
This is day three, where choosing your market is discussed.