Sorry to here your are suffering with depression. At your age I would recommend a spiritual approach. Medication may be a short-term answer but God ( call in what you like) is the only real long term help.
When you get mad and depression take a close look at your thoughts ( the real probem).
The world including the people in your family are doing the best they can. Assume we are all somewhat insane! So, do not take things personally. Do you best to except things as they are now. Think of it as a divine plan that we just do not understand. A learning experiance.
I would also recommend exercise... take a jog or walk get out into nature. When you get out notice the moment... the birds... the sunshine or wind. Get out of your head and into the beauty of the moment. Best wishes, I will pray for you. Remember to love yourself today.
I just wanted to let you know I welcome you here and I agree with the wise members that have posted to you already. Do trust your parents and talk with them. You need help and coming here and talking to us is a great first step but you would truly benefit from talking with a professional as well.
I am going to post another link for you as you may find help from this site as we have teens but not a lot online here in the forums. LiveWire: http://www.golivewire.com/
We are here for you so keep on posting to us.