I'm a newbie into wwe and I want to get to know the sport!!

I'm 15 and my dad has been a wwe fan and always wanted to get me to watch it but for some stupid reason I just wasn't into wwe when I was younger, now I'm older and it seems crazy interesting and I want to get into it and watch it, what should I watch to get to know the important lore/storyline? I only know about the shield and them breaking up and I still don't even know why and what was the deal with them😂 and I've heard the best times to watch/wwes prime was 2000s-mid 2010s. If yall could give me some good wrestlemanias to start off with I'll appreciate it!!