This would be a fascinating article if it had more data to back it up. As it is, it seems like some far stretching intentionally inflammatory hyperbole that explores some interesting concepts.
I dont think a CS degree from a non-high-end school moves your career very far unless you want to work for the gov (have you given that a shot?).
So think of yourself as a person whos built a couple of websites. An internship would be a huge step up.
Think about what kind of technologies you want to work in. Do you want to do web dev? You should probably learn a popular mvc framework (laravel, rails, django, Etc)
TV and anime makes carefree socializing in high school look better than it is.
Colleee is usually a lot better time for socializing than high school, espicially if you're ambitious and nerdy.
Find other ambitious nerdy people that share the things you're excuted about. This will probably be much easier to do in high school.