6’s Negativity and Inability to Let Go

Why do 6’s (sp6 here) struggle with thinking like “If something goes wrong, the whole day/thing is ruined?” Or inability to let go of a thought, or the fact that something went wrong, etc. And just general negativity when hardship arises. I struggle navigating hardship due to this “clinginess” to how I WISHED something had went, instead of accepting that it just is, and sometimes life is fucking hard and not perfect.