Can I threaten to kick my sibling out of my house?
Why would you kick your sibling out?
Cause she needs to learn she can't abuse me because we're not children anymore
You shouldn't threaten people in your family. You should work out your differences peacefully.
Wtf you! I can do whatever I want to. I'm in charge and she needs to do whatever the fuck I say without complaining.
You can't do whatever you want because family is expected to look out for each other. It would be best is you just try to communicate with her in a calm way.