You absolutely can! But suppose you want to build a secure, dynamic, and well-customized website that is tailored to your needs and not created from a "one size fits all" solution. In that case, it might make more sense to work with a developer to suit your needs. This is because a website created custom is limited only to your imagination. Although websites built on Wix/WordPress can have many essential features, they are limited by the functionalities of the website builder.