Hi, I have Commodore 64 computer in my house but I don't know what can I do with it... Also I need to find a way to connect it to my monitor or buy CRT Monitor.

I'm completely from another generation than you guys (I'm teenager) so I didn't have too much contact with this computer. I'm really interested about computers so this is reason why it caught my eye.
I think the most basic purpose of this computer is playing games, I mean that this is what people think when they hear about it.

I love retro games but I'm bored with games for right now and instead I'm focused on learning new stuff and improving my skills. And if I would like to play games I would just run them on emulator.

I don't have any hardware for it expect broken joystick, cassette player and blackbox cartridge (I buyed it few years ago and I don't remember why)

My question is how can I learn something about computers/electronic stuff with this Commodore 64? What's best way to display video from it? Why you love this computer so much? And what this computer can do, what emulator can't?