Old guy here. My advice: find something you really like and do that. Doing something you like multiplies by 10 the chance you’ll get good at it. You’ll have to try out a few things, which might give you the impression you are wasting your time; but it’s better to lose 3-4 years finding your way than burning up at 35 because you hate what you do.

Aaaaand why would CloudFlare want to teach the computers to mimic mouse movements?