i've been caught only twice with a few more close calls. dude, lemme tell ya, if you're smart and careful and safe about it, you will NEVER be caught again. that's what i learned after my parents found my bong. here's what you should do:

hide all your shit in a good spot. even an underwear/sock drawer will suffice, as long as your mom doesnt put away your laundry for you or they don't search your room.

ONLY smoke AFTER the parents have gone to sleep/left the house/on a different floor doing something to keep them busy. if you don't think you can do this, you're fucking dependent on weed and you need to get kicked in the face.

start using a doob tube and incense. they work wonders!

use visine and spray axe/tag/whatever after every sesh, even if your eyes aren't red and you don't smell like pot. better safe than sorry!

if you can follow these rules and be smart about smoking and your parents aren't too snoopy, then you can get away with it every time!