I'd like to learn Information Security by myself. Where do I start?

Hello,

I'd like to learn more about InfoSec including topics like Computer Security, Networks, Internet.

It seems really important and very interesting at the same time.

Where do I start and what's the proper way to go from one topic to another? Any free online courses or YouTube channels? When is the right time to learn how to use Linux etc?

Thanks in advance!

information information security privacy security start