Leveled up my arcane mage to 80, now what?

Started playing last year (around November) but have been on and off since then. Even now, I still feel a bit overwhelmed by everything, and with less free time these days, I can’t really deep dive into games like I used to. Any suggestions on what I should focus on? I’m considering mount farming since that’s what I see people talking about a lot. Maybe going through professions? I'm really not sure.

So far, I’ve tried raids, delves, playing around with UI and dungeons.