I’m tired of living with my sister and just wanna disappear

I’m just sick and tired of having to stay in the same house as my older sister by one year (C). I have a lot of unresolved issues that I’ve been trying to work on and it doesn’t help that I have to spend pretty much every day with my sister. I never loved anyone in my family, I just tolerate them and I don’t know why. My sister who I live with just irritates or angers me just by existing, and I can’t stand living with her any longer. I have two other older siblings, a brother (A) and sister (B), I get along with them better than C.

I plan on moving out once I’m financially stable and I’m most likely going to no contact with C and low contact with the rest of my family. I also plan on getting therapy and work on my unresolved issue.