<human>: Can you provide a brief overview of the text?

So, my brother is a senior in high school.  He's almost done, but he hates school.  He thinks he is just wasting his time and wants to leave.  He's also pretty smart, yet he's failing economics and physics. Contradictory, I know.  He seemed to have change over his junior and senior year. He thinks it's a good idea to leave his current college prep school and just get an online high school diploma.  After this he wants to move out and get scholarships and student loans to pay for college.  He also can't stand being around my parents, mainly my mom.  I'm worried for him, but I'm in college and out of state.  He called me tonight and told me all of this.  I think his ideas are absurd. He could simply finish school and my parents would pay for him to go to school.  We are in good financial standings, so none of this is necessary.  He's so stubborn and thinks he is always right, too.
What do I tell him? How do I convince him he's going about this the wrong way? Why is an online high school diploma not as good as a college prep school diploma? What's your advice.

Thanks a lot.
<bot>: Brother wants to drop out and get online diploma. Wants to live on his own when my parents will house him and pay for him to go off to college.