I get into pretty nasty fights with my sister a few times a year, on good years just once a year. she is a very emotionally demanding person, but as an older sister I try to provide that but also prioritize gentle guidance, which she doesn't enjoy hearing all the time. can anyone suggest me a book on how to better navigate relationships like this so I can stop feeling upset every time she says something hurtful to me, or better yet how to be a better figure for her needs?
by solovelee