Teaching your skills takes 1- courage and 2- skill.
Especially if, exactly that, what you teach is a precise skill, then you need skill at your trade, plus skill at teaching. Whoo!
As far as courage goes, I mean, teaching a craft that makes you earn a living, that is tons of courageous. Copycats are always lurking, and giving them the tools to do so even more easily needs guts. But then again, that is my insecure self speaking. Cause I totally ADMIRE those who do. What strength and confidence! Just beautiful.
I don’t miss actual school, but I like taking a class once in a while! I’m doing my 3rd pottery throwing class right now (porcelain this time too, my fave, yay!) and I love it SO MUCH. It is good for my overall creativity flow, as well as my general mood. lol :P
With that said, I recently found out about two website communities promoting exactly that: online classes from skilled people at affordable prices! NICE.

Skillshare offers classes such as how to photoshoot in the darkness (so CANNOT do this), or go crazy by drawing illustrative words (I’m REALLY tempted by this one…), or how learn to apply eye makeup (perhaps I shall learn eventually), or even design thyself (now that’s a project!).
There are other subjects too, such as a gardening class too for example, but it must be done right now because I can’t find it anymore! You can watchlist your faves on there, so this doesn’t happen. ;)

Craftsy is, well, mostly on crafts. You can try a couple of free mini-classes first, and then, go crazy with affordable ones! Such as making your own cheese (ohhh myyy gahddd), learn to garden in containers (one of my fave hobbies), dabble in metalsmithing (wow!), or decorate a fancy ombré cake (whut!).
There are also a couple of shorter, quicker little workshops available, if more intensive (but better rounded around a total skill) classes are not your thing, as well as some affordable patterns.
Alright, let’s learn new stuff now. :P