I don't care that my sister flunked out of community college and my mom is freaking out.
Is your sister okay?
Yes, I don't care about this issue. My sister can decide what she wants on her own.
It may seem uncaring at times, but it can be healthy to just let people live their lives. We waste too much time trying to control other people.
She missed the deadline to withdraw from community college and she's stressing out over this.
Your sister could use some more support, no one deserves to have lots of stress over such issues. She would love it if you helped her out for the time being, and then you can go on your way!