I've given up wanting to live. Anxiety?

I'm 15 and I'm a female and I think i might have depression and anxiety because I feel so sad, angry, and scared all the time and like I'm going to fail at everything but I have no motivation I used to be happy before I just started feeling sad and like I was sinking into a hole that I was digging no matter how desperate I was to get out and it's been like this for going on three years and I started cutting about two years ago at first small one here and there but then more often this year I guess to cope to feel something that wasn't sadness or anger I wanted to feel something anything honestly I didn't care what it was which is weird because the first time I cut it was so small and as soon as I saw the blood my heart started racing and I couldn't breathe I remember getting really dizzy and feeling sick I remember how much that small little cut hurt like my arm was being sawed off and how I starting crying uncontrollably but do you think I could be depressed and have anxiety?