This is only my second year on a robotics team, and I had a somewhat similar experience on my team my rookie year. I dont attend the school which my team is based out of, but I was asked by the team leader (my dad) to contribute my programming knowledge (which is limited, but more than anyone else's) to the effort. I agreed, and my FIRST career began.
I experienced extreme culture shock my very first meeting.
The school at which my dad teaches is in Philadelphia, and the kids on it come from all over the city...I live out in the suburbs, and am pretty much the stereotypical geek.
It was pretty difficult to prove myself to the rest of the team and to get accepted into the group, but I worked hard, learned what I needed to to contribute to any lacking aspects of the team (in my case I learned much more about programming, memorized all the wiring rules and became head electrician, and was integral in design and fabrication of our arm), and by the end I had gone from 'Dillon' or 'Mr. Compton's Son', to 'D-Rock' or 'Ben'(an affectionate reference to a supposed likeness between myself and Mr. Franklin...). Work hard, prove invaluable to the team, and not only will you have fun, become obsessed, and get accepted; you'll also learn some things!
the forums and the whitepapers on this site are a great resource, and there are some useful link on my teams webpage...[shameless plug]...
www.masteryrobotics.com. Click on the "resources" or "links" tabs!
Good luck
-Dillon