Depressed

I think I am mentally depressed and I am started to feel insecure and like I don't want to leave my house! I don't want to leave to go anywhere I want to stay here where I am safe from everything! Im scared and confused and want to cry so much! Today at school I nearly broke out crying because I got mad. I don't want to hurt my friends or be mean or be a bitch I want to be fine and happy! I cant deal with anything right now! I don't want to see my family or friends or anyone for that matter because I'm sick of everything and just want it to all stop! I need to be left alone, alone where no one can find me or take me away from where I am, where no one can find me, where there is no living soul to be seen. I JUST WANT TO BE ALONE AND I DONT WANT ANYONE TO COME NEAR ME!!!!!!!!!!! I WANNA SCREAM AND SHOUT AND HAVE NO ONE TO JUDGE ME!!!!!!!!!!!! I WANT TO CRYYYYYYY OUTTTTTTTTTTTTTTTTTTTTTTTT!!!!!!!!!!!!! I JUST WANT TO CRY AND SHOUT AND SCREAM AND GET ANGRY AND BE ALONE, away from everyone! I believe I am a hazard and I believe I am not happy at all and If I cant be happy the people around me wont be happy either.