Why am i tired, don't feel refreshed when i sleep, am never happy. i can't stand my parents and allot of my old friends i get head aches and can't focus?

There are many: Possible explanations but you need to speak to your parents or a guidance counselor about how you are feeling. There could be medical reasons, adolescent issues or mental health concerns but you need to get a full evaluation. Your parents can help if you speak to them. Many teenagers feel like you do due to the hormonal changes at your age, usually it passes get help and sort things out.