Homeless,
   Try going to some jams, as that can really help you learn from watching the other guitarists. Play, sing, play, sing, & play & sing some more. Try performing for your pets and neighborhood kids, nursing homes.
   No, not everyone starts that way. My family always sang around the piano as my mother played. The first song I remember singing was "Hound Dog" for my father when I was 2 or 3. My mother stood me up on a chair & made me sing "Fairest Lord Jesus" for the relatives when I was about 4, then church, then . . .