Converting 2 prong outlets to 3 prong.
I am needing help.
I have 3 black and 3 white wires in the my house that were all connected together into a 2 prong outlet. I am trying to convert them to 3 prong outlets. The 3 prong outlets have the slots in which I can insert the black to black and white to white and I did as such with the 2 set of wires for the top and bottom of the 3 prong outlet. Now when I use that outlet, the lights in my kitchen go off along with anything that is over in that area. Please advise.