What is wrong with me?!

You sound a lot like me. I'm not so sure if this is anxiety it may be depression, or stress as they convay similar symptoms, to be honest it could be a lot of things as a lot of symptoms from mental illnesses cross over and so it would be wise if you went to a doctor and got checked out, and they could say for sure what it is. It may seem a ridiculous thing to do, but i'm glad i did, it helped a lot! You should talk to a friend or if not talk to childline (it's like counselling for 18's and under, they told me what i should do and i just went with it)
Hope you feel better soon, and don't drink, it's bad for you :) Xx

Bo to the doctor ur worrying about something way to much

Get more sleep. Go to bed earlier.

relax or go to a doctor

Think harder.
=X

Caution bro!
Big picture of this problem:
Not eating enough causes the sleeping problem, outbursts, depression ect.
-or-
Chronic mental illness (depression, ect.) is causing sleeping problem, outbursts and poor appetite
-or-
Another factor (tough times with relative passing, low self-esteem, ect.)

All I can say is to
1) Eat right and analyze any change in "having it together" mentally
2) (problem is still there) See a psychologist and consider those two last possibilities
a. Chronic mental illness- Medication
b. Another factor- Therapy, generally resolving an issue.

Start off by eating, add good bit of fruit and veggies to your diet. You'll feel a boost after a couple of days. If you have a good friend one you can trust, try talking to them and get some of this stuff out. There is something there that is eating away at you within. Get it out, get to the root of it and pull that root out, get it out into the light.

You're in my prayers, good luck and i so hope you feel better soon. :)

Stress, or depression.
Go see a professional counselor. They help with moods, no appetite, and can give you like CD's to listen to to calm yourself down. I had those problems and had to start taking depression pills and seeing a counselor once a week for $75. But I am a teenager and my parents were worried sick and didn't mind paying.
Then, I made a new best friend. My parents got me my first dog, and immediately all my problems went away and I gradually could stop going to counseling. Hope my experience helps!

Self experience!!!

first off, try and have a breakdown, a really good cry. just let everything out. every inch of negativity out of you. scream into a pillow. do whatever, just let it all out.
then go take a bubble bath and just relax.
don't think about everything going on, just listen to your favorite music, and relax.
start off by attempting to eat. eat healthy, good things. your favorite things.
try having a glass of tea, or hot chocolate or something before bed, and try and go to bed really early. so that if you can't fall asleep right away, by the time you do, it will still be around a good time.
don't hurt yourself; it's honestly not the RIGHT thing to do, and i tell this from experience.
if you're young, since you're still in school. it's probably hormones and just from growing up.
these things happen, it's the ******* worst. but just do things for yourself.
do things that make you happy.
don't over think. have good talks with your friends, your family.
there could be something mentally unstable in your brain, or it could just be growing up.
go talk to a doctor. see what he says.
you're probably perfectly fine. just having a rough year. these things happen .
school is especially difficult, and does no good for helping in any way, shape or form.
just remember things will be alright. be positive.