Undergraduate / My passion made me a geek; USC Viterbi supplement: Nerd or Geek? [8]

I liked how you started the answer!
Overall it's really great :)

Help with mine?

Undergraduate / I was chosen as the leader of my team; COMMON APP - Challenging moment [6]

It is a good essay, but it seems too long. Try to shorten it a little bit
I am not the best person to give grammar advice but you should definetely review it with a teacher.