Returning player no idea what to do!
Well in my opinion the best way to get gear is to farm dungeons. Earn tokens and spend them at the vendors. Use the gold you make to buy the rest. If you really like WvW though, you can just run around farming tokens and loot bags to get WvW gear. The vendors are in the main castle of the borderlands. To get to WvW I think you just press B and pick a map.
Edit: If you are looking for more long term goals, you should consider working on ascended gear and legendaries. Those will keep you occupied for months.
Where do I go to find more information about Ascend and Legionaries? Also, what is “lving world”?
Legendary – http://wiki.guildwars2.com/wiki/Legendary
Ascended – http://wiki.guildwars2.com/wiki/Ascended_equipment
If you stopped playing around New Years then you probably came across some of the Living World stuff from Season 1. Tower of Nightmares, Flame and Frost, Bazaar of the Four Winds etc. More details can be found here – http://wiki.guildwars2.com/wiki/Living_World
http://bad-eu.guildlaunch.com
The Family Deuce. Asuran Adventure Specialists.
http://wiki.guildwars2.com/wiki/Ascended_armor
http://wiki.guildwars2.com/wiki/Ascended_weapon
http://wiki.guildwars2.com/wiki/Legendary_weapon
Here you go! The wiki really is amazing for gw2. It will probably take you a very long time to accumulate the materials for this stuff, but it can be very satisfying to see those pink/purple item names. :P
Also the living world is just Anet’s way of discussing new content added since release. The current living world events are taking place in the new map Dry Top. If you reached level 80 or finished the personal story you should have gotten a message about it. Dry Top can be reached through Brisban Wildlands.