I'm self taught and been playing guitar for the past 9 years. I never took lessons althought learn a lot for friends.
As I look back I should have taken more time to learn basic songs. Two reason for that. First I didn't know my chords until 3 years ago. Second, everybody wanted me to play songs at campfires and family reunion. Just try to play "For whom the bell tolls" to your uncles. Not the best style for family functions.
I would suggest two things. Learn tradition music or classics, 4-5 songs. This will help you learn basic chords and you will learn to play in front of people (Family, friends) since your going to be ask to play someday. This is also real good for popularity, but we would never use guitar as a way of gaining popularity, no never ;)
The other thing would be never be shy about asking other guitarists how they did that, what's this and what's that. Don't be afraid to say someone plays better than you. There's always someone better than us so there's always someone you can learn from.