My age 30 years. But my behaviour like a child, I think my not matured. I feared about my life. I think so negative thoughts, I can't do, I can't mingle with people, feeling so sad, I think always my feature. Small problem also look like a big, I thinking always. I am not happy. Only depressed, anxiety etc. Please give me answer any psychiatrist. How to improve my personality, this a mental disease or not? Confident level also low. Some times mentally disturbed & felt to die.