You've asked this question every other day for over a month now - just pick a job and start playing the game instead of overthinking it!

If you're that unsure about a tiny desicion like this: Stay away from tanking... Tanking isnt difficult, but you'll be required to make certain calls and if you cant even make this one, it might just not to for you.

Leveling is pretty easy in this game by now so it really doesnt matter what job gets the quest-exp - if you want to level up another job later there are plenty more ways to quickly get exp. I wouldnt even consider that as argument on what class to level.