Why am I so sad at times?

hi im a girl and im 13. my mums got mental illness depression and some other things too. I just feel like my life is so upsetting. sometimes because of mum and some because of accentual life its self. the fact of that I want a normal life. I dont want to be sad but I cant help it I feel like I go to school and just want to go far far away by myself. I dont want to end up like my mum. I hav counselling anyway. but I dont no why im sad. my friends turn against me. I choose a path that I dont want to go but since I lost all my other friends that now talk about me behind my back. I hav no one. I just feel so stressed and sad :(

I can't say what will work for you but for me the answer is to get moving. For some reason the faster I move, the better everything seems to work. When I sit and do nothing, my mood starts going downhill but once I jump up and get to work, I always feel better. I think what I'm trying to say to you is, don't expect other people to make you happy. Create your own happiness by getting involved and making things happen. When you do that, you collect friends like flies and how you feel goes up like an elevator.

Don't say it won't work for you unless you try it. :-)