Let me preface by saying I'm not entirely sure if I'm asking this in the right place and I'm very emotional right now, I apologize if my post is in disarray or if this question is not within scope of this site - I hope you will all understand.
I am 22 years old, I graduated from college 5 months ago, and I'm currently working. For several months, I've been planning with my twin sister and several of my friends to move out and live in a rented house. We recently got approved for a house and signed the contract so my sister and I broke the news to our parents. My dad has been silent but my mom is incredibly upset, and I'm afraid we're permanently damaging our relationship with her.
To give further background, I am first generation Asian-American. No one in my extended family has ever moved out of the house. All my cousins live at home - even if they go to college away from home, they'll move back in immediately and won't leave until they get married; I have two uncles who still live with my grandmother. So, one of my mom's main grievances is that I don't care about my family anymore and that I value my friends over my family. She also thinks our living arrangement will be awful because there's going to be 5 girls in one house and we're gonna ruin our relationship with our friends.
Her second grievance is that she thinks I'm ruining my financial standings by moving out. I make roughly $70K a year and I have roughly $17K in savings. I do not have a car right now and I will need to buy one when I move out. The rent I'll be paying will be $100 more than what I'm paying my parents right now. She thinks that I am making a mistake by not staying at home and saving money, which to be fair, yes, I understand that it would be technically cheaper to live at home especially since I'm lucky enough that my parents feed me, do my laundry, and pay for utilities.
My motives for moving out seem very Western, but I just want to be independent and not treated like a child. I still have curfews and all my actions at home are scrutinized and monitored, and I just feel like I can't be my true self while living at home. I don't hate my family and I have no intentions of abandoning them; I'm not moving that far away from home and still want a relationship with my parents after moving out. I know that I'll have to grow up by managing my finances carefully, cook for myself, take care of myself etc etc.
I guess my question is how can I communicate to my parents my motives and help them cope with the idea of me moving out? Considering my background, is it really so wrong for me to want to move out? Am I really not in a situation to be moving out? Am I really such a terrible daughter for wanting to move out? I'm sorry, I'm just so terribly upset - I technically wasn't the one who broke the news to my parents but my sister; I was taking a nap and had awoken when I heard my mom scream at the top of her lungs that she would kill herself and I'm worried that my decisions are hurting her and that I'm an awful person for doing this.