Why are my MacBook keys malfunctioning?

Basically what’s happening is most of my keys aren’t working, other then letters and numbers

For example space bar is ] and so are all of my arrow keys, delete is enter and ‘ an hour ago I spilled some water onto it, is that the reason why it’s affected. Am I also able to fix this myself or do I have to Apple tech support? The reason why this photo is here is because before this was happening I spilled some water onto area, is this the reason why it was affected?