What drill bit do I use for this simple turned nightmare job?

[Eddo Rogue]

Use S-shape screw then it will go in offset hole but be in right place at the surface. (jk) seriously maybe you can do it with the screw just not going in totally straight which would probably be only a quite small cosmetic issue probably could ignore as long as the purchase of the screw is good

there could be one nail in a whole wall and Murphy says, you'll probably hit it

hitting electrical is worse especially if your drill shorts them out. never had it happen yet, but it can; but usually electrical sockets etc will clue you in where the wiring likely is

Might try that thanks. Yep Murphy loves me. I am worried about hitting electrical, but looks and seems quite clear of anything like that.

 

[Eddo Rogue]

forgot to mention a variety of self tappers got gobbled up. Not even a scratch in the wall.