Can I Change My Luck & Learn to Take Risks?

I read in a book recently that “lucky” people* are often just more open to new opportunities. Of course, not all opportunities are good ones, but being open is the first step to finding those that are. If you ask me, we could all use a bit more luck these days, so I want to be open to new opportunities. But the truth is, new things scare me. They always have. Though I spend so much time thinking about self-improvement and growth, I’m actually terrified of taking a chance on any new habit, career pursuit, exercise, hobby, and more.