You know you've had so many hobbies, how about teach from what you've immersed yourself. For me it was the Japanese Soroban Abacus 🧮. I taught the kids this from a discovery channel episode about math savants in Japan doing math calculations FASTER than a digital calculator. What?!!! YES. you can't find teaching centers anywhere close to me on east coast. So, I could teach it to children here, in Kentucky. That's my example, I know you have examples too. Don't be stuck friends, you know more that you know. You JUST forgot star friends. Positive, possibilities abound!!