Truck Wont Start

[x's1969]

I have a 1969 Chevy c10 that I just purchased about 2 months ago. I drove it on a Friday and drove well no problems, I go to drive it on Saturday and the truck doesn't start. There was one click when I went to start it and nothing after that. No humming no clicking,nothing. I tried turn my lights on and didn't have any power. Head lights, Tail lights, Turn Signals, dash lights don't work. The starter has 14 volts I go to turn it on and it goes to zero. All the fuses in the fuse box are at 0. The battery, alternator, headlights/headlight wiring harness are new. Just currently lost and have no clue, any help would be greatly appreciated.