Geniuses are more common than you might think - it's the stable genius that's rare.

Don't buy into college at this point, just get some certifications if you're looking for shiny gold stars to put on your resume.

Programming is a very unique field and so it's hard to give a straight answer here - expectations may differ completely from company to company. There are different ways to organize programming teams and they have very different job duties, don't think that there is 'one' answer here.

That said: if you do good work, do your work on time, and get along with others you'll do fine.

If you make it into this company it shouldn't be hard to just ask, "what are the expectations for me and how can I present that to others."

But seriously dude, calm down. If you can pass their code exam and you've written a client that's solid, you've already got the skills you need. The rest is just working on your professional demeanor.