I'm annoyed that my inlaws have overstayed their welcome
What don't you like about them?
I'm just not happy  having them just around the house all the time.
When you get married, you marry the whole family. You are expected to be a gracious host when family is staying with you. Maybe you could get out of the house more often.
I need some time to myself. I'm tired of their judging looks and never shutting up.
Well maybe you need to talk with your partner about what is going on. You should be able to set healthy boundaries with your extended family.