I dont know whats wrong with me?

umm it kinda long...but idk. i have good friends, grades, i play tennis, softball and piano but i dont feel happ. i laugh with people at school hysterically but when i come home im justt. here. its rare i talk to my parents, or my brother or grangmother...any family members....im not emo or sence or goth just me. and it feels sad. i dont feel like my life is going anywhere...idk it doesnt feel right. am i just depressed or am i just being a teen?