Keyboard stopped working after water spill

So I spilled about a half glass of water on my laptop. Its an Alienware 17X. I've been thinking of replacing it since its a bit old and not working so great anymore. However I still need it for a little while longer! It was late and I was just about to go to sleep, and I wasn't really thinking. I've never had this happen to a computer before, since I'm usually quite careful. Here's what I did which I now see is the worst possible thing you could do:

I dried the keyboard as much as I could, but left the laptop on. Then I went to sleep, and actually left the laptop on all night. The following day, I found that multiple keys on the key board weren't functioning, though the rest of the computer seemed to work fine. I shut down the computer but then restarted it. Some of the keys that hadn't worked now seemed to work again, but most the keyboard still wasn't functioning. Also whenever I clicked in a place to type, the j key would just type out an infinite amount without me pressing it. I shut the computer off again but I didn't do anything about it. Today, I tried to restart my laptop again but it went to the reboot options screen, and since the keyboard doesn't work I can't boot up my computer. I finally looked up what to do if you spill water on your keyboard, and I realize how stupid I've been.

It doesn't seem like there would be any water left in the computer by now, but I've shut it off, turned it upside down, and taken the battery out. Is there any chance that I might be able to recover it?

Thanks to anyone who answers!