I agree. School is a great way to learn about things and where mistakes are forgiven. You learn through mistakes.

Successful companies will all have you believe they started out in garages, out of cafes, etc.

1. Don't believe them

2. Don't think that you are not the exception, aka Steve Jobs or Mark Zuckerberg. You are NOT the smartest person in the world, you do NOT have original ideas and you are NOT someone everyone has been waiting for in a long while. You have to find out what you like being good at and what you like becoming better at and just do that. I know what it feels like to see all this cool technology and you want to do a little bit of everything of it, but there are not jobs and in the end no satisfaction in the field of little-bit-of-everything.

3. Also, sleeping and eating healthy actually is long term advice as well as short term. Even better; you are probably more productive if you spend less time on projects, work, etc than you are 'burning the midnight oil'. Again, you are not the exception here. I used to say "I am a night person, I don't need to sleep as much". Bullshit. Everybody needs sleep.