Dear Pastor I live

Dear Pastor
I live in apartment with my semi bedridden mom and sister.

My sister now is secretly writing harmful things about me- what I say and keeps in a notebook. My brother encourage her to write everything down in book. Because my brother is on her side, she’s become very arrogant and proud.
I’m very worried as she and my brother are planning to harm me using the notebook.
How to live like this if every time she is jotting things down , spying on me. Who will take care of my mother.

Please pray.