Another issue with Palace of the Dead is, unless you're in a premade, you likely won't have a party that will let you tank properly. Palace tends to be a bit of a free for all.

I recommend you familiarize yourself with the DRK tool tips, go into Haukke, and level from there. DRK is pretty forgiving if you already know the basics of tanking. Mp management is something you'll learn as you go along.