If you always cry and feel sad and guilty and tired what is wrong with you?

Feeling sad, tired, and guilty (and crying all the time) sounds horrible. There could be several causes to this--the most important thing to know is, there are steps you can take to feel better.

You could be suffering from depression or some other mental illness. If so, please reach out to those around you. Family and friends can support you, be a sounding board, or simply a shoulder to cry on. Reach out to people who can help you find out what's going on, and help you find healing. Depending on your age or situation a teacher, guidance counselor, coach, clergyman, doctor, or campus mental health service might be options to consider.

Other options to ponder are abuse or dissatisfaction with life. No matter what is going on, know that there are people who care about you. If not in your 'real' life, then people who'll stop and answer your questions on wikianswers. Know your an important human being who deserves happiness and peace. Reach out to others, and don't give up. Keep talking until you find help and feel better.