Who should I cosplay as?

Hey there. I'm really confused as to who I cosplay as, so it started like this. Me, my friends Jordan and Hilary are making our own cosplay club after school at our highschool. I'm also going to cons but that is still awhile from now. My birthday is coming up very soon and my mom will probably let me get a cosplay outfit. This week I'm coloring my hair an auburn-y color (kinda looks purple on the box) and I have green eyes...(I could get contacts) I am hyper and sarcastic. I don't care what gender either so....HELP!? Pwease =3