As a kid, if you have a genuine interest in a subject you'll want to learn it. I wouldn't be afraid of making mistakes mate, we all make mistakes especially making prototypes! Heck manufactures design products these days to only last their warranty period. Good to see you back btw!
Sincerely, my thanks to you for taking the time to make these vids. It's cool you show the mistakes, these show the principal learning points that we are likely to fall into when following your projects. Thanks, and waiting in anticipation of the next vid :)