Tokens Wishing notebook

I'm Token a highschooler that was given a magical notebook able to grant any wish anything i want by some random homeless lady, which WHO THE HECK IS THIS WOMAN AND WHY DID SHE GIVE ME THIS NOTEBOOK but what will happen if i lose the notebook and someone else gets their hands on it and they start to make their own wishes what if they start wishing for horrible things and what are the consequences for me making all of these wishes!!!