When my airline job of 20 years got contracted out to cheap, no-benefits labor I decide to become a guitar teacher. I quickly learned that the hours spent teaching were only a fraction of the unpaid hours the job required (scheduling, bookkeeping, preparing and stocking teaching materials, learning, etc.)
Plus the continual turn-over of students as a result of doing my job well makes job secutity a dream scenario. I make 1/3 the income I did as an airline employee, but my wife and I have learned to live within our means and save as much as possible. Overall it is far better than the joint-ruining grid of loading airplanes at ridiculous hours in ridiculous weather.
Teaching has never paid what it is really worth. Best wishes.