How to lvl up craft? My craft stops at lvl 11. No matter what i craft, it doesn't lvl up any more... Plz help!

You need to by the appropriate recipes. These can be bought from Vendors around the game, on the AH (But overpriced) and from other players if they aren't bind.

You then need to find the appropriate items to mix for these recipes!

Or, maybe Wasabii haven't enabled Crafting past Level 11? You would have to clarify this with someone who knows.