There is strong research showing that the discomfort of being alone is largely a skill deficit rather than a permanent trait. Wilson et al. (2014) found people would rather self-administer electric shocks than sit quietly with their thoughts for 15 minutes. The intervention that works best is structured solitude: giving yourself a specific internal task (journaling, reflection on a concrete question, even mental rehearsal of a skill) rather than open-ended "just be alone" time. The people who thrive in solitude tend to treat it as a practice they build incrementally, starting with short deliberate sessions, not something they jump into cold.