Hey cmc1996! Welcome to the Camp Half-Blood!
First off, I just want to say that you character has a lot of potential. However, your character can't be related to a canon character, sorry! She also can't have contacted Grover, but she could have stumbled across another satyr.
Otherwise, your character seems like it will be great! Try to take what you already have and to expand on it. Physical appearance and personality must be in sentence-form! Try to go into detail when it comes to both sections.
For appearance, what shape is her body? Pear-like or apple-like? Does she have an hourglass-figure? Is she skinny, slender, athletic, slightly chubby? How long is her hair? What shape are her eyes? What type of clothes does she typically wear? Is she pretty, average, mysterious, or strange-looking?
Try to explain more for her personality. You could make her brave and stubborn, or you could make her bold and have an attitude. How does she act in public and when she's by herself? Is she an adept liar and/or manipulator? Is it easy for her to make friends? Is she a social person? What is her attitude towards other people? Is she confident or does she lack self-esteem? I like to choose several main personality traits and then I choose other traits that complement those few.
Be sure to include plenty of flaws too! Flaws are what make characters fun to role play. Fortunately, you've already included some flaws, so kudos to you for that!
I know it's a lot to handle but you'll wow everyone with your fantastic character once you're done! Of course, you don't have to do everything I suggested, feel free to describe things your own way and to maybe research things and think of new physical or personality traits. :]