I am depressed….Please help me?

I am depressed….Please help me?
I am losing hair. loosing my looks. losing my clean and clear skin. I used to be very beautiful.. not anymore. I have become fat. I used to have thick silky hair. Now its dry coarse and i am going bald… I don't enjoy my job. I don't have any boyfriend and i never had one. I dont have good friends. My family loves me… but they are unable to help me. I go to gym and doctor. byt my hair skin and weight issues ar not vanishing moreover I have lost interest in shopping .. that too being a girl. Women's true beauty is in her hair skin and body… i am no longer beautiful….. Why is this happening to me. I am just 23… Why is this happening to me… ?????