I have no idea what to do

I have no idea what to do anymore. In December 1 2020 my mom, little brother, and me were put in a homeless shelter because my dad is verbally and meantal abusive. I'm February 13, 2021 we get an appointment. After that everything has been good. But than we are having money issues and I started to work to help out but my mom wants me to save it but I want he to take it and put it into bills. Last night I had a mental break down because any time she is in a bad mood it get to me because she tells me everything and uses me as a therapist when I'm only 14. I cried for hours last night and she kept yelling at me what am I crying for and I don't want to tell her why I was crying because I don't want to hurt her feelings, she is also taking away my privileges to make me tell her and I still did not tell her. I have no idea what to do now and I feel like if I wasn't in the picture it would be easier for her. I have no clue what I am supposed to do anymore.