Okay, so...
I'm a big NFL fan, and one reason I much prefer it to NCAA is because of its simplicity by comparison. 32 teams, NFC, AFC, easy stuff. I find NCAA to be much more daunting (I admittedly don't know much about it). But there's a thousand teams, the SEC, Big 10, Big 12, PAC this, PAC that, etc. It's all too much. I live in Oklahoma and cheer for Oklahoma State because that's where pretty much all of my family went, but I just can't bring myself to follow because of the seemingly complex nature.
Can someone ELI5 the basics of the structure/divisions, or point me to a good breakdown so it might be easier for me to follow?