Welcome to your website’s custom dashboard where you will find specific tutorials on how to carry out edits and tasks on your new site.
I am currently building out a library of useful tutorials which can be found on my resources page here. It includes general WordPress tips and training specific to Divi and Oxygen. Oxygen Builder is what your site is built with and there will be specific tutorials for that. Here is a link to Oxygen Builder tutorials from the developers which provide in-depth knowledge on all the features.