Help , 15 w/ DEPRESSION?

I am a fifteen year old girl and ever since ive made straight a's on my report card in second grade ive been forced to meet those expectations. Someone stole one of my projects and i got everything removed from my room . I cant take it anymore , i wAnt to lke leave my house in the middle of the night so i can not have to deal with the stress, and im afraid to tell m parents!?!? Help, please what can i do, ps i also do NOT have any suicidal thoughts.