Let’s have a more comprehensive run through at a more professional solution to mastering – where the mix and mastering process are distinct and separate elements. We will take a different approach to the use and application of Logic, devise a workflow that is specific to the process of mastering.
Traditionally, mastering is the final stage in the production process – assembling, sequencing, and processing 10 or so tracks to make a cohesive listening experience. In this day and age, this continuity of listening experience is less important, however, you probably have to deal with several songs in one session.
Read more about this here: https://www.musictech.net/tutorials/logic-pro/professional-mastering-workflow-in-logic/