The characteristics of a caring person include, but are not limited to kind, compassionate, respectful, trustworthy, and generous.
If you do something like this, it is probably better to make them all nouns:
The characteristics of a caring person include, but are not limited to kindness, compassion, respect, trustworthiness, and generosity.
But Tan Vi is right! You are supposed to describe a time when you experienced something. I see that the experience you are writing about is being sent to a particular high school, so start by talking about that, not by listing the characteristics, etc.
And also, can you describe one specific situation... a particular time when you had a memorable experience of their caring nature?