Some advice I've seriously considered is just reading and learning as much as possible then starting a company when I come across an opportunity [0].

Yet my main qualm with this strategy is lack of job security. I.e., what do I do if the startup fails?

Also, is it worth it to go to graduate school or medical school? How do I decide?

Thank you in advance for any advice and I'd love to clarify if I've been unclear

Thank you

[0]: https://paulgraham.com/google.html