it's an OCD trait connecting events with luck. you mind imagine some colors,numbers, dress etc as sign of bad luck , and if any bad happen to you mind join/connect /compare this event to your bad luck list.come to a decision this bad happended because of this color,number etc
try to counter attack this event one day, ( wear a wrong colorintentionally (unlucky color) socks before go to work if nothing bad that day your mind learn to clear this OCD
do it again, if a bad thing happen dont give up