You can absolutely do that. If you want to upgrade to a paid plan to get some of the features you want, then you can switch at any time through the My Products option in your account or with the help of a GoDaddy Guide. Once you upgrade your site will have all the same customizations and work that you've already put in place, just with the added features. See Website Builder plans and pricing for more info.
GoDaddy InSight is a technology system that provides tailored recommendations gleaned from insights across more than a million GoDaddy customers in different locations and industries. InSight is designed to help you improve your online presence by providing you with performance metrics and advice on how to improve them. GoDaddy InSight powers a central dashboard where you’ll find your: