Mom & family drama

So I’m start this long crazy story of mine. I’ve always been a good daughter always helped my mom growing up in everything to make it easy for her because I was grateful what she gave me. Later on she remarried and had my 3 siblings back to back. I was always helping her with them once again because I was grateful I spend years of being a teenager missing out on things to help my mom with her kids even when I met my husband we would have to cancel plans if she made plans I was almost 19 and I’d never say no I always understood and tried to help her my youngest brother almost thought I was his mom because I would sleep with him feed him everything because my mom worked and I was home schooled. It wasn’t until I was 16 that I got my first job and right away my mom charged me rent 250$ she stopped paying for phone bill she charged me other bills and I’d always say okay because I wanted to help her. Thing is now I’m 24 life is finally looking bright. I have my daughter who is 4 I work full time she works at night so I asked her if she can help me babysit my daughter she said fine but I’d have to pay her I said okay I’d give her what I could afford. It’s been 2 years and now she’s asking me for more money and she was so rude about it like dam Why is it that the help I need always has to be about money and it’s not just about babysitting she does this about everything. If I ask for a ride if I need anything and I’m broke . I’ve been homeless once with my daughter and she kicked me out because I didn’t have rent that month even tho I told her I’d pay late by few days but my brother who is 1 year younger then me can ask her for anything even money and she will help him with no pressure he doesn’t even need to pay her back he didn’t pay her rent he moved out at 19 . She’s gave him cars loans & even wants to help him by a house. Why does she charge me everything?! Why can’t she help me like I helped her I never charged her to babysit all 3 my siblings I was 21 the last time I took care of them and started at 11 years old. I’m I crazy to be mad at her for this.