As a 21 year old, I recognize that I'm far from being completely emotionally developed. But, I also recognize that I'm way behind others my age. I think I am too emotionally sensitive. Things people say or do really affect me. Whether I care about the person or not, I always have extreme emotional episodes after others express their feelings or opinions about me. If what they express is derogatory, I get very upset. If it's positive, I get very happy. And, I absolutely cannot deal with rejection. I want to be able to just ignore what others think and just deal with what I think. How can I achieve that goal?

1) How can you tell if you are psychologically depressed? How do you ask? What if you are only depressed sometimes? I am a first-year psychology student, I live in college, and I seem to be having plenty of mood swings lately. I used to be very bubbly and enthusiastic and happy and relaxed all the time, but lately, I've just been edgy and sad, and I cry a lot. What's going on? I've been at university now for nine months. I'm only seventeen, and I live away from home (and I'm happy about that). I still have fun sometimes, and I get involved a lot, but then something will happen and I just bomb. I feel helpless and useless and angry because I am unappreciated. It annoys my friends and that makes me feel even worse. What's going on?

2) How do I know if I am depressed and need help? For about a year now, I have been easily irritated, angry, I cry when something sad or happy happens, I have lost seven pounds (last year), sometimes I have a hard time sleeping at night. I go over everything I did wrong in a day, and I have a hard time trying to concentrate on reading. I have wanted to mention this to my doctor, but I am very shy about it. He says I am physically healthy. I have tried exercising, and taking warm baths to help me feel better. What is wrong with me?