For 13 to be unlucky would require there to be some kind of cosmic intelligence that counts things that humans count and that also makes certain things happen on certain dates or in certain places according to whether the number 13 'is involved' or not (whatever 'is involved' might mean).
I had a daughter who was 9 years old and I had the feeling I wasn't going to be a real parent if I didn't quit making movies for a while and spend time with her. I also felt that I'd made enough movies and said what I had to say at the time.