I'm going to fight with my mom because of my little sister
Why are you blaming your little sister?
They use to treat my sister like a baby and it's unfair because I'm forced to do all the housework.
We don't always agree with family but we must get along. Sometimes as the oldest you are expected to do more work.
God, no wonder why I want to move out. I'm sick of this.
The oldest usually gets a lot of the responsibility and it seems unfair. If you are still unhappy, I think getting your own place is a good idea.