Oh, well, I'm really sorry to say, but you have a long way to go, as you are only up to near the end of the original story for A Realm Reborn (the '2.0 story'), which was extended gradually by five successive patch main scenario stories that follow on from it, one after the other (2.1 A Realm Awoken, 2.2 Through the Maelstrom, 2.3 Defenders of Eorzea, 2.4 Dreams of Ice, and finally, 2.5 Before the Fall.

You can skip all this by buying the ARR skip potion from the Mogstation, but I don't recommend that, as you miss out on a lot of story that explains exactly why you end up in Ishgard in Heavensward.