Help organize my stuff

[Pos1234]

I'm a new user. I don't understand Your Library. It contains all the stuff I've listened to or searched, but not the stuff I've decided to save. For example, the library in my house doesn't contain every book I've ever picked up. It only contains the books I've decided to keep. How or where do I save only the stuff I want to access later so I can quickly get to it vs. having a big list of stuff I happened to browse at some point in the past?? Ideally I would be able to organize into stations, podcasts, etc. since I also don't like that Your Library mixes this altogether. When I'm driving down the road I need instant and easy access to the Podcasts I'm following to look for new episodes. I can't be scrolling through these huge lists.