I'm afraid this is called depression. Think carefully before you do run away. WHY would you think of this? WHERE are you going to go? WHAT are you going to live like? Your parents LOVE YOU, no matter what anyone else says about you. Your parents try to do their best for you to ensure you are safe, they DO NOT want you to run away because they LOVE YOU! This problem can be sorted. Believe me, I had depression and many a time, I thought of running away or different methods of suicide, but running away will not help you. It will make you worse, because your problem will always be chasing you. What you need to do is to tell your parents that you feel this way, just say 'Mum, Dad, I think I have a problem and I need to get help from you' or show them this question. If you'd prefer to keep things private, go to the doctors and they will probably refer you to go see a counselor. This is not just your feelings, this is a serious illness that can eventually cause death in some rare cases. You are NOT ALONE. 20-25% of women and 7-12% of men suffer from depression at some point in their lives and 15-20% of teenagers are currently suffering from depression. Do not let these people twist your mind like this into thinking that you 'suck' You DON'T. Do you get that? You DON'T.
Think of your problem like being in a cave and trying to get out on your own. You can't. You're stuck and you can only get out with someones help. This is why doctors and counselors are so important. They are the people that help you to get out of this cave and on the road to recovery.
Since you are a teenager, your depression is likely to be at least partially caused by a low amount of a hormone that is important in adolescence and development and without it, people can be left feeling really down.
You need to remember that YOU ARE NOT ALONE. There are a lot of people suffering from depression out there, and there are people to help you. Over 70% of people who get treated for depression recover completely. That is where you are going to be. You will learn to LOVE YOURSELF for who you are and NOT CARE about how other people judge you, everyone is judged, no matter who they are, and in different ways. Do things that you love doing and BE KIND TO YOURSELF.
Good luck and I really do hope that you think again before running away. You need to tell your parents about your depression so they can help you, believe me, they would want to! You WILL get through this and I have all faith in you that you will.
I'm just an email away if you want to talk!