If this is your first attempt with a money making website you need to make sure you develop some expertise before you begin setting up your website
. While you could do this during the process it's not a good idea; if you develop the expertise first you will be in a better position to know what you need to do as soon as your website goes live. You don't want to take time to learn how to make money with your website when you should be promoting it and working to create more visitors and thus generate sales. Do your homework before you attempt to work on the project.