Unless you upgraded the Shire Gear (one thing you can do with Poetics), dungeon gear will start replacing it around Violet Tides.

Every even level 60, 62, etc. Is crafted gear.
Every odd level 61, 63, etc. Is dungeon gear.

Check the item level of your gear. Higher item level gear = better gear.

End game is basically capping Tomestones every week, by running dungeons, raids, beast tribes (at 70), so you can get the best gear and reach higher level content such as Savage or Extreme fights. Gaining Reputation with Beast Tribes. Leveling other classes. Saving up for player housing if you're into it. Weekly/Daily Hunt Board. Boss Fates. Treasure Maps. Achievements. Gold Saucer. Weekly Challenge Logs.

But mainly just having fun and figuring out what that means to you.