The number 7 is a lucky number for some people. I’m not superstitious about numbers and I don’t believe in luck.
Luck is an excuse for people to complain. They say “I’m unlucky” when in reality they didn’t prepare for the unexpected or they ignored that still small voice of reason.
Make your own luck. Choose what happens on your journey when you can. If it’s out of your control it’s not luck, it’s just life.