Oh my god

 I lost my card holder which had my ID card, OV card, school pass, and a lot more. I looked in school but it wasn't there (im sure of it) and i cleaned my room but didnt find it there either.

where should i look?! Without my ID card i cant leave my house bc ill get a 70 euro fine if i go out with friends at a busy place with security guards ; ;

my guess is that it fell behind the closed space of my desk but i really dunno