Please go to an adult that you trust and tell them this asap then have them help you find a psychiatrist to help you out. Your friends shouldn't leave you alone right now. You can feel better but you need proper treatment, depression is a serious thing so you shouldn't take it lightly. I hope you get the help you need, and if you want to talk to someone you can talk to me, but first tell the adults around you they need to know so they can get you the help you need.