I am naturally pessimistic I think I lost a lot of opportunities because of it. Thankfully I also get those periods where I am blindly all-in on something. Some of those made me very good at useless things but some resulted in very good opportunities and then outcomes.
Energetic optimists who avoid very dumb choices do very well in life in my experience. People who talk about luck a lot usually can't produce a decently long list of things they tried or keep making blunders (smoking, alcohol, associating with destructive and apathetic people).