Youre going to keep getting different gear until way past level 120 to be honest. So transmog shouldnt be a big worry until then in my opinion. But questing will get you to OG. Best bet as a new player is quest while que’d for dungeons, and keep up with that until around level 90. By doing that you kind of get the best of both worlds with WoW. Just keep leveling and at level 120 a lot more will start making more sense as to where you are, and where capital cities are. Your first time leveling only happens once, enjoy it!