what should I do and how should I get through this?!

Depression is an illness. It's like diabetes or heart problems. It's nothing to be ashamed of. I absolutely can relate to you. I've been depressed for 3 years, and I recently started getting treatment about 3 weeks ago.
First and foremost, you should tell your parents. It's definitely not an easy thing to do. My parents found out when my doctor pointed out the cuts on my wrists. But I recommend sitting them aside and calmly telling them that you've been feeling down and that you think it may be serious. Show them that you have nearly all of the symptoms of depression, and tell them that you've been contemplating getting professional help. Believe me, once you come out about it, it will be very emotional for everyone, but you'll feel like a huge burden has been lifted from your shoulders.
Next, is getting professional help. Depending on what you and your parents agree on, you might be admitted into some sort of overnight or day hospital. However, your condition might not be to that extremity. Rather, you might talk to some sort of psychologist, psychiatrist, school counselor, therapist, etc. a few times a week. The key is talking things over with your parents and a professional and gathering a treatment plan together. Medication plays a huge role in your recovery. My therapist would always downplay the medicine, but the medicine makes a huge difference. Unfortunately, it takes a month or so to fully kick in, but believe me, you will feel dauntless and so much better once that medicine starts to take effect.
And, of course, you have to deal with the negative connotations of depression. I was admitted into a mental hospital, and I was scared out of my mind that kids from school would make fun of me for being in "the nut house" or "the looney bin". No one can genuinely understand what you're going through and sympathize with you unless they themselves have been in your shoes.
Just hang in there. And if you're ever having an especially bad day or just need someone to talk to, you can shoot me an email. Good luck with everything, and don't lose hope. There's light at the end of the tunnel. <3

you appear to have depression. you need to talk to your parents and have them take you to your doctor for a check up and let him/her know what you have been experiencing lately and see what your doctor has to say about it. then follow your doctors advice. many blessings to you!

been there.

U sound very typically depressed. You must seek advice from your doctor now. U need to tell ppl who are close to you and you then have to deal with it. You may be given anti depressants and they are not so bad but you do sound like you are in a deep depression and need help now.

Yeah you might need to go see a therapist.

if life gives you a reason to be sad, give life a thousand reasons to smile.
i have been through the same things a month ago. you know what helped me? mind-control. i mean you should have control on your thoughts. for me the main reason for depression is stupid thoughts that haunted me for days n weeks n months. so i stopped trying to hurt myself, like stopped thinking about stuff that made me sad. i kept my mind blank, stopped listening to songs that reminded me of the past, started talking with people that can change my mood or make me feel better, or talked with people who made me forget what was killing me inside, atleast i forgot about it when i was with them
. slowly i got used to it. now i am a really happy person. i was depressed for a whole year. and just a month of trying to be happy changed me. hope this will help you
and remember there are people who care for you and love you!
even HOPEless has HOPE in it! remember this! keep smiling! :)

been there!