Depression and Anger Issues? God?

Ever since I basically started the fifth or sixth grade, I've been pretty depressed. I've always hated myself thinking that I'm ugly, fat, stupid, etc. and I blamed a lot of my depression on God. I swore at God and started doubting God, too. Every night I used to pray and then I would usually have a good day. But now, it's like my body won't let me pray and I get too lazy and weary to do anything at all. I started believing God again after some weird experiences, but now i feel like God is angry at me. I feel like God will never forgive me for what I did, except I'm not even sure what I did wrong. Now I feel depressed. Help please?