We are very able to provide you with help building your site using the Site Builder tools as well as other general website building tips, but when it comes to how to make money with a website, that is something we are not able to provide much information on. There are various possibilities such as selling products or adding various advertising platforms to your site.
There are a number of ways to place ads on your site, please visit this link for more information.
If you would like to sell products, we have tutorials that explain how to create an online store using the Online Store feature on Yola. Please click on this link.