I lost my identity

For a long time I have been having issues with depression and anxiety. I used to love studying science, doing math, and was pretty active. Now years later I am incapable of doing those things. I don't know what I like any more. I don't feel like doing anything. I have lost so much of my intelligence and identity. For the past few years I was stuck in the middle of nowhere with parents who did nothing to help me and got mad at me for being depressed, got kicked out of my parents house into a homeless shelter, worked at a university cafe, lost my job. Have been struggling to keep a job, I am currently trying find a job, and failing. I used to have hopes of going to college and getting a job that I enjoyed, but now not only I'm struggling to survive, I know I can't ever go to college, I have lost most of my intelligence and my identity. Is it possible for me to be revived? Is my lost of intelligence and identity permanent? Please help me. Thank you.

You haven't lost your identity, but your interests and motivation. it's possible to find yourself again, but it may require further treatment. Depression and anxiety aren't too difficult to treat.