I need some guidance. I'm really depressed.?

I'm really depressed. I have a lot going on. My mom and I keep getting in to arguments. My only friend has been telling me I'm not "pretty". My teacher was calling me chubby,stupid,lazy,and weird. She taught me talking to people about how you feel is wrong. I still haven't gotten over the death of my dad. I have a councilor but I'm afraid to open up to her. My teacher has told me I'm never going to succeed in life because I'm too lazy. I keep getting called ugly by everyone. Sometimes I feel like God has given up on me. I know I don't have the hardest problems in the world. I'm just not strong enough to face my problems. Please I need some guidance. Sorry If I'm dramatic I'm just really sad.