Help my brain KNOW THINGS

Hi Indiehackers...

I'm in the embryonic stages of my Content Marketing career. I've gotten to grips with some fundamentals of SEO and content marketing, mostly by poking around in the dark and grabbing whatever info-nuggets I can.

The problem is, I want to know more...

But where should I get my information? I've been through things like Google Digital Garage, Ahrefs YouTube channel, etc.

Yet, the more I delve into this educational chasm the more I lose my bearings.

Can anybody offer a more methodical way of learning about SEO and content marketing and strategising?

Thank you in advance,