What to do, something has been damaged on my laptop keyboard?

Yesterday I spilled a glass of water, unfortunately my computer was right next to it… At first it seemed that it hardly got anything, but when I switched it on a few hours later, the keyboard didn't work, so it either didn't respond, or a lot of characters and letters… I noticed that there was a small puddle of water under my computer. It wasn't particularly big, like a mopped table, so not much water. I've had the laptop off all night now, and placed it in such a way that it dries first. But on Monday I'm back online school and can't wait a week for it to regenerate, does anyone know what I can do to get it back up and running as soon as possible? In this case, rice would not work because the grains would slide into the small openings of the computer…

Unscrew and dry off, see if the plug is inside. Otherwise buy a new keyboard or use a USB keyboard.

The quickest way would be to open it and clean it from the inside. I would recommend you anyway, if you think you can.