I wouldn't recommend that too, I've seen it in person and it really looks delicate and the SA specifically told me upfront that you cannot put heavy stuff into it.
For a casual school bag from Celine I might recommend Shoulder luggage or even cabas which is really lightweight and I think should hold a lot more than the trapeze without pulling the handle.
Oh no That's too bad that it is so delicate because it is such a lovely bag and I tend to put many things inside my bags Thank you for your recommendations! I already have a citron mini luggage so I wanted to go for a different Celine in a darker color I just worry about the cabas lacking a zipper because I don't want anything to fall out!