I don't think I've ever experienced "peace of mind." My brain is churning 24/7. There's nonstop mulling. It never turns off. Constant inner monologue, scenarios, imagery, planning, replay, contextual curiosity, rolling thoughts and analysis to my best ability, etc. i often find myself thinking of other shit while talking to people. In fact, fuck peace of mind—vegetatibe mental state is no my cup of tea.
Are you scared of old age ?