Congrats on starting @iDuncan, it’s never too late.
As you work the course, consider a couple of options that get past the riffs and scales…
Our own 50 song challenge of songs selected by Josh, songs are grouped by difficulty level and each one subtly teaches something or reinforces something in the course.
A great guy on YouTube called Constantine has over 1600 songs tabbed out and posted for learning. His scores are very accurate, and he has things that are very easy to quite difficult. I found his site very useful in finding full songs I could play from start to finish and feel very accomplished. And he is just the nicest guy on the planet.