I am still living with my siblings and ihave done some research about crypto wallets online, they said keeping your recovery words offline is the best way, now I plan to write down my recovery seed in my book, remember I said I live with my siblings, I can't guarantee myself that they won't get to where I write down the words, my brothers and sisters are still younger than me but I don't know if they knew anything about crypto and wallet, but I have an idea, if it's stupid do tell me.
You don't only have a problem with the fact that one of your brothers and sisters could see your seed (although they probably won't know what they're looking at all), but also with the fact that that book, notebook or something won't end up in the trash, be damaged in some way (water, fire, chemicals, pets...)
If I were you, I would get some kind of small fire-proof box, put the seed inside and hide it somewhere where no one would think to look for it. As for the place to hide, I would recommend that you consider (if you are able to) hiding inside the wall or under the floor, but you have to be a master to cover up the traces of the works.