I wish my mom and I were closer like she is with my sister. The only time I hear from her is when…

I wish my mom and I were closer like she is with my sister. The only time I hear from her is when she wants me to do something for her or to yell at me!😔🙁😢 She did everything single thing and bought every single thing when my sister, her only biological daughter, got pregnant! She did not have to buy diapers for a year or bath products! My mom says she treats us all the same but all of her other children see differently! I am one of her adopted children. I am grateful that she did but just wish she would make me feel like I am her daughter carrying her granddaughter! Needed to vent!😭😭