IWTL how to be a “car guy,” or at least be more knowledgable about cars

I guess I’ve sort of developed an interest in cars. I’m not particularly interested in driving a “cool car” necessarily. I’m more into learning how they work, learning the terminology, being able to diagnose certain problems, and maybe being able to do a little fixing myself. I’d also like to learn how to drive a manual transmission, as I’ve only ever used automatic.