Undergraduate / Unique Factors That Have Most Shaped Who You Are [6]

Hi :]
I'm given this:

List and describe THREE unique factors that have most shaped who you are(any obstacles you have faced or passions you have developed are especially relevant)

what is appropriate for these kinds of responses? what are they REALLY looking for?

another is:

If you could change one thing about your community, what would you change and why?

Well; mostly I am worried about the elderly residents who live in my building. (does that count as community?) What should i add to that? Should that even be what i write about?

THANKS!