Feeling extreme fear in closed spaces is a common anxiety condition called Claustrophobia, and it can be managed effectively with the right approach. Start with simple techniques like slow deep breathing, relaxation exercises, and gradually exposing yourself to closed spaces for short periods to build confidence over time. Regular sleep, physical activity, and avoiding excess caffeine can also help reduce anxiety symptoms. Talking to a mental health professional is very helpful, and therapies like Cognitive Behavioural Therapy are proven to reduce fear by changing negative thought patterns. In some cases, doctors may prescribe medicines for short-term relief, but these should only be used under guidance. With consistent practice and support, most people see significant improvement.