should i confront my mother ?

i always come here and need to stop, but i have no one else to help me out lol. i made a post before stating that my mother has not sent me money for our $342 phone bill in the last two months and when she does it’s not the full amount. but the issue now is that i feel like she tries to make me feel bad about her situation and why she doesn’t have the money. but i don’t feel bad tho. in my eyes she put herself in that situation. it irks me every time she tries to explain what she had or has to pay and when she’ll get her money. she also likes to make people feel bad in general when she doesn’t get her way, she’ll flip the roles and act like a victim. i want to call her out and tell her i don’t care what she has to pay because she led herself to that point and i’m starting my adult life and i don’t want any money ties with her. it makes me resent her. is it a good idea to tell her i feel like she’s using me? and when i ask her to send money she’s like “oh, how much do i owe you again?” like girl this goes back months so of we are technical about $500 something :/