I don't know what I'm doing

Can anybody else relate? I keep planning my life around the worst case scenario that never happens only to end up looking and feeling foolish, yet it's always the things I never saw coming that end up hurting me. It's almost as if I can't predict the future or control most outcomes regardless of how well informed I think myself to be. Certainly I have biases and blind spots in my thinking that need to be addressed, but the real challenge I face is accepting the uncertainty of life and giving myself some grace in that I'm mostly just winging it. Thoughts?