With the excitement of becoming Level 120 come a lot of new activities to do. However, it is particularly important to note that you should continue to complete the story mode quests. You will undoubtedly achieve Level 120 before completing your third zone, so be sure to head back and finish the story quests as they are important to unlocking game content as well as pushing your reputation levels even higher. Each zone comes with a lot of side quests that can be ignored at first as you push your item level up, complete emissaries, and do dungeons, but when you have some time, be sure to wrap up all of the quest lines in each zone to maximize your reputation potential. Reputation is the gateway to all things in Battle for Azeroth, so quest away! Be sure to use our Quest Completion Checker tool here at Icy Veins to see if there are any missed quests in any of the zones for you to go back and complete!
Formerly, when you visited a new zone, you would be very careful, tiptoeing around, cause everything was higher level than you. But as you dinged (leveled up), you would get more powerful relative to the locals. So you would feel more confident and capable. Dinging came to represent more HP, more Mana, better hit ratio, more crits, more talent points. you felt REALLY good when you dinged, like you had accomplished something. Almost tangible. You would think "now I can go back and take that mob/group that ganked me". And then when you had done all the quests, you would move to another zone and do it again. Fun!