Choosing realism is not the same as being pessimistic. Denying reality and choosing optimistic bias is delusional.
It is possible to see things as they are and not make it an internally destructive event, especially if you are emotionally, mentally, and spiritually regulated.
It is not possible to deny reality for long periods of time and not have it affect your emotions and physical and mental states.
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𝘕𝘢𝘵𝘶𝘳𝘦 𝘩𝘢𝘴 𝘨𝘪𝘷𝘦𝘯 𝘵𝘰 𝘶𝘴 𝘢𝘥𝘦𝘲𝘶𝘢𝘵𝘦 𝘦𝘲𝘶𝘪𝘱𝘮𝘦𝘯𝘵 𝘪𝘯 𝘳𝘦𝘢𝘴𝘰𝘯; 𝘸𝘦 𝘯𝘦𝘦𝘥 𝘯𝘰 𝘰𝘵𝘩𝘦𝘳 𝘪𝘮𝘱𝘭𝘦𝘮𝘦𝘯𝘵𝘴. 𝘙𝘦𝘢𝘴𝘰𝘯 𝘪𝘴 𝘵𝘩𝘦 𝘸𝘦𝘢𝘱𝘰𝘯 𝘴𝘩𝘦 𝘩𝘢𝘴 𝘣𝘦𝘴𝘵𝘰𝘸𝘦𝘥; 𝘪𝘵 𝘪𝘴 𝘴𝘵𝘳𝘰𝘯𝘨, 𝘦𝘯𝘥𝘶𝘳𝘪𝘯𝘨, 𝘰𝘣𝘦𝘥𝘪𝘦𝘯𝘵, 𝘯𝘰𝘵 𝘥𝘰𝘶𝘣𝘭𝘦-𝘦𝘥𝘨𝘦𝘥 𝘰𝘳 𝘤𝘢𝘱𝘢𝘣𝘭𝘦 𝘰𝘧 𝘣𝘦𝘪𝘯𝘨 𝘵𝘶𝘳𝘯𝘦𝘥 𝘢𝘨𝘢𝘪𝘯𝘴𝘵 𝘪𝘵𝘴 𝘰𝘸𝘯𝘦𝘳. 𝘙𝘦𝘢𝘴𝘰𝘯 𝘪𝘴 𝘢𝘭𝘭-𝘴𝘶𝘧𝘧𝘪𝘤𝘪𝘦𝘯𝘵 𝘪𝘯 𝘪𝘵𝘴𝘦𝘭𝘧, 𝘴𝘦𝘳𝘷𝘪𝘯𝘨 𝘯𝘰𝘵 𝘮𝘦𝘳𝘦𝘭𝘺 𝘧𝘰𝘳 𝘤𝘰𝘶𝘯𝘴𝘦𝘭, 𝘣𝘶𝘵 𝘧𝘰𝘳 𝘢𝘤𝘵𝘪𝘰𝘯 𝘢𝘴 𝘸𝘦𝘭𝘭. - Seneca