numbers

i have always had this obsession with things being in even numbers and never really understood it.  my main interest is making playlists which must be in even numbers, if i have toast i have 2 pieces on plate even if i only want one, i put my shoes on and off twice before i lace them up, i count in even numbers in my head if im stressed.   if its not in even numbers it seems wrong .  wondered if anyone else has similar