when you have time, please, first contact your insurance company. be sure to have prepared such a story for them that the situation will be described as "an accident that couldn't have been avoided" and not just a stupid mistake. ask politely would they rather pay for fixing the old one instead of replacing it with a new one, and say that you would be willing to show the laptop to an authorized apple service personnell, and get it in writing how much it would cost to repair. and include a price how much a comparable new one would cost, too.
it will cost a lot to get the screen repaired, but it will still be significantly less than a price of a new laptop. that's why it is more than likely that the insurance company offers to give you money to get it repaired, and that's why you would do yourself a favor by asking the apple service to put in some extra to the repair costs 🙂 maybe stating that there's X hours work which costs a lot. naturally asking them to have few extra hours in the estimate, so that they can drink enough coffee during the repair service...
you will likely get what the repair service costs, if your home insurance covers laptops. i would think that laptops would have to be specifically excluded it they are not covered, since nowadays there are laptops everywhere.
anyway, good luck.