first time player - what shouldn't i miss?

i bought the game yesterday because i figured 10 bucks was a really good price for it, and i've heard great things about the game. downloaded it this morning and played for seven hours straight. i like the game.

however, there's so much to do! i really like that about the game because i hate when i run out of things to do in the game, but it's a bit overwhelming when starting to play. especially considering i'm going in totally blind, haven't looked at wiki pages yet, etc., i'm curious to know if there's anything that i absolutely shouldn't miss out on doing.

for context, i'm playing as a high elf & have been focused mostly on the dragonborn storyline so far. i've just returned back to riverwood after killing sahloknir. playstyle wise, i'm pretty much up for anything! i'm playing on the easiest mode there is as i get used to the mechanics and controls and all that & i play on pc. hopefully that covers everything!

let me know any fun things that i should give a shot!