I just had a 17-year-old Less Wronger e-mail me for advice regarding the Thiel Fellowship after reading my application essay from last year when I was 19. We had a long instant message conversation where I gave him a lot of advice which he seemed to find highly useful (my biggest piece of advice was to start teaching himself programming using Learn Python the Hard Way, shamelessly asking for help using a pseudonym on IRC channels, forums, and Stack Overflow if he got stuck).
It seems likely that there are other Less Wrong users who still live with their parents who could benefit from life and career advice. I'm especially interested in reaching those who see reducing existential risk as a major life goal.
A related idea is for people who have some goal they want to achieve, like having a romantic relationship with someone of their preferred gender or being admitted to a prestigious graduate school, to pair up with someone who has accomplished that goal.
So if you're a young person who would like advice, an older person who would like to give advice, a person who wants to accomplish a goal, or a person who has accomplished a goal and is willing to help others accomplish that goal, consider leaving a comment on this post so you can find your counterpart.
I realize this post is a bit open ended--consider it an experiment in tapping Less Wrong's social capital in a novel fashion.
My recommendation would be working at Google, or possibly one of the startups. Finding a job that fits your temperament is great for satisfaction- many doctors make the mistake of going into the field they find academically fascinating rather than the one that has a practice they'll enjoy. (That is, they don't look at what hours a job will require, whether they'll have to be on call, how many patients they'll have / how much time each patient will take, etc.)
If you go to graduate school / do research, it will mostly be thinking about problems for extended periods of time. Ability to code is not very relevant, though it's important in industry. You shouldn't worry about being third rate- the intellectual bar for PhDs is around 5th rate (though you need other strengths to make up for that).