[NotIntegrated]

From what you posted, you are just creating the 3DTextDraw, not actually attaching it to the player.

Edit: My apologies I misread your code, well try creating a normal textdraw and then attaching it to the player, I have certain labels for my gamemode, and this method worked for me (0.3 or 0.2 on the z axis should place it above the players head).