Lots of people go into HR because they like people and because they think there will be no math.
The problem is, there’s lots of math, and liking people often means you’re too nice and understanding.
I like math.
I also like people, which can mean it’s a bit difficult to have those really hard conversations with people. But, that’s part of being an HR person. If you can’t straighten up your spine and speak to people about difficult things, and sometime fire them, you should move to a different profession.