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.
Not a mentoring relationship, but a short plan that should help you avoid most trouble:
Write a check to your roommate for $100. Do not sign it, and leave it pinned on the back of your door, above a calendar. Write all your assignments on that calendar, moved up as far as is reasonable. (For example, if you would do the weekly homework assigned Thursday and due Thursday on Wednesday, i.e. one day before, then write it as due on Friday, i.e. one day after it's assigned). If your homework is not done* by the date on the calendar, you sign the check, your roommate cashes it, and you replace it with a new one.
As Scott Adams puts it, losers have goals and winners have systems. Focus on setting up the incentives you want for yourself. (The importance of this when choosing friends cannot be stressed enough.)
* Perhaps you work on a problem for an hour and you can't break through, and you need to ask a friend or professor for help. You may find that a first draft is all you can produce after one day. That's fine, and this system is more beneficial if that's the case, as it brings those things out into the open early.
The disadvantage to this is that it gives your roommate an incentive to distract you.