The Github page of Drupal Up has quite a lot of exact examples of themes, modules, and project setups.
The Youtube channel of Drupal Up has quite a lot of videos on topics like Theming, Module development, Site building and general tips on Server/Environment infrastructure and Best practices.
On Twitter, we are trying to share all stuff for Drupal and also updates for the new videos and stuff.
The idea is though not just to be another platform with some boring videos but all the videos to be inspired by real-world problems. That means something that you will most probably need if you work with Drupal. We want you to be successful and we want to teach you everything we know about Drupal!
So watch the videos, try to follow and reproduce, ask questions and you will see you will be able to conquer this wonderful sea that Drupal 8 is.