Hi, this is my first time doing this and I'd assume it was like replacing a light switch almost, but when I unscrewed the old outlet I noticed all 4 wires (not including the ground) was going into a little hole in the back of the outlet rather then around the 4 screws on the sides, how do I get these out, I've pulled and yanked and tried unscrewing stuff, with no such luck.
There should be a small hole beside the one that the wires are pushed into. Insert a small wire into that hole and it should release the wire. If it won't release just cut them off. Do not install them into the holes in the receptacle. Use the screws. The back stab holes are known to give problems with poor connections.