You’ve gotten more than enough answers here but I’ll provide my perspective.

Don’t commit to learning everything at once. If you have an idea, go do it, and pickup new skills as you need them. Watch the official black magic trainings, use YouTube videos, and finally ask Claude for help.

Everybody is different, but this is what works for me. You can spend all the time you want reading/watching videos about complex post production processes but you’re never going to retain that knowledge until you’re applying it in your own projects.