FFXIV was made for ME!...and that's what is wrong with it.

[Renshi]

BR's ultimate fate will align with V's. Come April 19, BR will be leaving this place.

You are waiting badly for that too, huh? I can't wait too! April, the 19th, Bycicle Day b*tches!

Anyway, if you go to Behests, you have to be a good teamworker (or not), and if you party with your leves, you'll have chance to perform badass-like Leve-Links, which will boost your experience points and skill points like crazy!
I'd suggest to play the game with a group. Being a casual player doesn't mean that you have to solo play, since I'm a casual player too =D

I've done a lot of accomplishments in this game. Most are referred to reaching some points in the game (in the means of AAAAAAAAAAAAAAAAAAAAAADVENTURE!), but also killing some NMs or surviving hordes of monsters, surviving with 1HP left and whatsoever.
The game is fun if you want it to be!

See ya!