If you feel anxious when a task is left unfinished, it is likely because it continues to play on your mind. Unfinished tasks are a weight on our shoulders, making it difficult to switch off and focus on something else, possibly even making us feel guilty until it is complete. It is a common problem that can be helped by sharing your thoughts with others, and discussing why you feel the way you do to help reframe your ways of thinking and stop the cycle.