I'm pretty much self taught too.
Although I did get a brief impromptu lesson from George Harvey once.
Was hangin in Fishermans Paradise with a buddy, when an old fella drove up and put his window down.
And it was George.
While we were having some good fishing chit chat, I spied a fish that rose a few times out of the corner of my eye.
And went over to try for it
After watching me make a few casts, he parked the car, and came over to give me a few tips.
Told me that my mechanics weren't great, and what to do about it.
Was kinda surprised with one with piece of advice he gave me.
Most casting instructions at that time said to keep the wrist locked throughout the cast
But George advised breaking the wrist a bit right at the end of the cast, to roll the line out nicer.
Just shows that there are different ways to get things done I guess