I read a lot about the 13 day period and the number itself.
Many from my country as well fear this number but for me this number was with me many times:

• On the airplane my seat was 13d or 13 E or 13 F mostly anytime
• 13 april is my name Day
• Erasmus contest I was selected with the number 13
• My cars plate number is 13
• Often when we dock with the ship (in port ) the berth number would be 13

And many many more...

For me it brought me luck and happiness .