###Human: I am suffering from poor concentration due to fantasy thinking. Please help me. ###Assistant: Hi. Yes, you are suffering from excessive imagination or daydreaming, which is common in every individual. But some people do it more which becomes a kind of habit. Sometimes, we also use this kind of defense and imagination in order to avoid day-to-day stress. It becomes a form of avoidance behavior. Distract yourself with some positive and productive strategies like focus on your career, practice your hobbies, make a day-to-day schedule, try to follow it, use some aversive stimulation to prevent yourself from going deep in imagination like pinching yourself hard on the hand.