I was totally confused over how to use flask-security, and researching that made me super confused about sessions vs. cookies vs. tokens, and researching that brought me to the topic of the model-view-controller (MVC). Long story short, I found a pretty good video that introduces the paradigm:
I've made crazy progress in the last couple of weeks. As a result of that, I've managed to get my grubby hands onto SQL and I've even wrestled with which database management system to use. I used Digital Oceans' succinct article to settle on PostgreSQL.