It's never too late to start! I never did anything with electronics until about 3 years ago. Actually, my first project was just jumping right in the deep end and designing and building an amp. Then it needed some tweaking to sound good so I learned from that. Sometimes throwing yourself out to sink or swim is the best way to learn.
I'd definitely like to do more tutorials on things. I've been planning it for my YouTube channel, so no reason I can't bring a bunch of it over here too.