Have you checked the #1132038253109837994 and #1120796649686573086 sections? There are a lot of useful chatbot templates which you can download and try, and also so much good instruction and ideas on how to build those chatbots, from those who have built them. You can start with those example chatbots and use cases that you feel are the easiest to build at the beginning, or with those that interest you the most and you want to learn how to build.
I agree that updating all old Botpress YouTube videos to match the new dashboard and all the new features would be super useful for all the current and future bot builders who just find out about Botpress. It could be just those super simple yet so effective 5-minute videos presenting one feature, on the Botpress official YouTube channel, or by Decay and others who are creating those videos.