Depression

Okay so I don't know about this group and the confidentiality of it but I have a lot to talk about and I'm hoping that at least someone will listen to me.

Hi I'm 15 and I have depression and a few anxiety diagnosises. I tried to kill myself last year on my birthday but I didn't tell anyone. I'm an 'emo' and I get picked on for it. I self harm a lot. But I think it mainly all started in February because my Grandad died and he was closer to me than I am my own dad so it hit me really hard. Then i met someo e that i used to know im primary school or (kindergarten) he became my best friend in a matter of weeks and we relied on each other because he was going through shit and self harming so i wanted to help him and he helped me, but things clouded my emotions. Then I attempted again in April.. I had a book i wrote to my friends explaining why i felt the way i did and everything that was going on in my life and head. Then one night I broke down to my mum telling her everything and wishing I didn't but I did it anyway. I carried on self harming secretly and only my best friend knew. Then I set him up with a girl at my school and it was the best gift I could've ever given him I think. Suddenly he was so much happier and I was glad and they're still together now and she became a good friend of mine. But now I'm going to camhs to help deal with my self harm and depression but my depression is getting worse and my mum thinks I'm faking my depression and my dad doesn't believe in metal health issues so to speak. So I'm really struggling at home and school because if my anxiety. Does anyone have any advice how to stop cutting and how to cope with my anxiety at school? I find it really hard to deal with..