Walls and Ceilings - Drywall repair

While installing vertical blinds on the patio, I used a drywall screw and anchors to fix the brackets. Due to an error in measurement for one of the brackets, the bracket hole did not match with the hole in the drywall, so I tried to drive a screw (aluminium) between the anchor and the drywall, and due to the torque, the screw head sheared.
Now I have a screw head in the wall.
I tried to scrape the wall around the broken screw to try to remove it..
Now I still have a screw in the wall and an ugly crater around it.
Any suugestions on how to patch this will be HIGHLY appreciated.
-AKN

INstalling blinds over the kitchen sliding door.

Well it's a screw so it wont put pop out like nails, Just give it a tap or two with a nail punch to make sure it is below the surface, gat a small tub of vinal spackeling, follow cans instructions, paint.
Or Use A Real Big Trim Piece To Cover It,,,