You'll be moaning about noobs and taking names in no time guys :P
Nah, it may seem a bit overwhelming at first but if you just take it slow and start by exploring your surroundings in your starter zone you'll get the game's geography down pretty fast I suspect.
I personally am delighted to be in a world so new and exciting that it overwhelms me. I would suggest to enjoy the chaos and wonder, because you will seldom feel this way again after you've gotten used to the world. I saw various posts about GW1 where people were feeling nostalgic and reminiscing the wonder they felt in pre-searing when they started GW1, knowing that they could never--figuratively and literally--go back.
I didn't figure out LA myself until my 3rd character. It worked out well because after I already run 2 humans through Queensdale, I was getting tired of the hearts and wanted to try some of the other areas. It's kind of a pain running back and forth for the personal quests but it's a nice change for the hearts.