Yes! I just submitted the last video in the Web Services section of my "Mastering Drupal 8 Development" course. I'm planning to move into the "Creating a Custom Theme" section next.
I'm so glad that I persisted on Sunday afternoon to figure out the issue that was holding me hostage. My accomplishments on Sunday set me up well to keep on rolling on Monday and today I just kept on charging ahead.
Now I've just got to keep up the momentum the rest of this week :) I've still lots of time left to complete more of the course.