Fun stuff to do...

[Shougun]

If all those other excellent ideas above don't work I suggest watching a Thavnairian Onion grow, it's the best.

I'd get into being a completionist if you're sick of what you're doing now, go get all the mounts and minions, achievements, try to wait patiently for Golden Saucer, fail waiting and go yell at SE for taking too long :P, race chocobos, snowboard, play cards, and visit the Ul'dah Miners guild with the use of your Echo power. (..hehe)

[Chihaya]

If all those other excellent ideas above don't work I suggest watching a Thavnairian Onion grow, it's the best.

Best idea ever, 8 real life days of hair pulling

But yea... if you aren't having fun... why are you still playing to be honest.
I been moving from game to game once a game gets dull. Tried Neverwinter, Aion, TERA, Phantasy Star Online 2, Star Wars The Old Republic within the past year.