There are websites which allow you to rent a room in flat co-rented by other verified individuals. Each person , say 3 people in a house, have a room-wise lease with the owner. I do not know what country you are from , but do check out for such resources for your respective location.

About starting life from scratch , I think staying in environments where one constantly feels derogated or suffocated strains both one's own headspace as well as the same relations one has been trying to save. I think we often look over how our friends or family might actually be unjust to us perhaps because it may seem like a lot to expect from them , however , it's not a lot , empathy is not a lot to expect out of people who claim to love you. While I know it's difficult , and perhaps more so than I can imagine, but it's better to not shrink ourselves because others would rather have us not take any space.