Laptop issues - need help!

Does anyone have any idea what might be going on here, or is this even worth trying to fix?
Basically, my laptop has started acting completely haywire. One minute certain keys just stop responding entirely, and the next, everything seems perfectly fine.

But here’s the really bizarre part: out of nowhere, the screen starts scrolling all the way to the bottom of the page, and it won't let me scroll back up if I try.
I’m pretty sure this is all because I accidentally spilled some water over the keyboard once.🤷

I just don't get why the damage is so intermittent—it's totally glitchy one moment and then acts completely normal the next.

Nice attempt at linking that to the fact that you spilled water all over your keyboard. There’s clearly some kind of intermittent short circuit happening somewhere. I had a similar issue once where certain random keys would just stop working for no reason at all. Honestly, these kinds of glitches happen more often than you'd think.

Is it even worth fixing? Depends on the laptop. Replacement keyboards aren't exactly pricey—you can find cheap ones on eBay—so if the laptop itself still runs fine, just swap the keyboard out.