Teach courses. Udemy, Skillshare, etc. If you're in a big city, see if the co-working spaces also offer classes, then you can go teach there. You may not reali

Teach courses. Udemy, Skillshare, etc. If you're in a big city, see if the co-working spaces also offer classes, then you can go teach there. You may not realize it, but relative to ten years ago, you know a lot more, so put that knowledge in an ebook or course and sell it to people ten years younger than you. Build mobile or web apps.