She is the new girl everyone is a little unsure of

 They have already decided who she is 

She is the one they have decided they do not like.

 They hate her.

She hears but does not listen

 They don't think she understands what they say about, HA! Little do they know

She is short, with light brown hair, green eyes, and freckles.

 They don't like that

She wears confidence as if a crown

 They will not accept it.

She is strong like a rock 

 They try and move her 

She is talented

 They try to degrade her with their words

She makes friends easy

 They try to destroy

She never quits

 They do anything to get her to quit

She doesn't care

 They do whatever they can do make her care

She is successful

She is kind

She is funny

She has faith 

She has joy

She has confidence

She has what they want

She is what they want

 They simply choose not to be