Guild Wars 2

thank you all guys. im gonna try to find a guild and join it. also is there a “noob” friendly class, or are they all pretty much the same?

I got this game on release and i have only played a few hours since then, i really like the game i just cant fully grasp it. i would appreciate it if you guys could help me understand what to do. For example, i don’t understand how crafting works in this game, also i don’t understand dungeons and how they work. Another reason is that none of my friends play this game so i would like to meet some people online and play together because playing alone is boring. Thank you.