At 16 if you are contributing to open source you are well ahead of lots of programmers with jobs so kudos to you.
If I were you I would use this to my advantage by having the git repos etc on my resume + LinkedIn and then start searching for volunteer orgs. for programming gigs and get noticed there and take good references and then apply for full time jobs. Good Luck!
On top of that, would take some time to spruce up code after even a year or so... if you don't have test coverage, add it. If you still use it, take what you've learned and refactor it.
There's always room to improve what you have out there... On the interviewer side, plenty of people only have 1-2 things on github that either don't work, are poorly documented or just plain don't reflect well on them. Do your best to make what you do put out there the best you can.
