It seems to me that you are the problem, not them. It also seems to me that you push your family away without explanations, and you just keep assuming things on your own without even asking them, you keep hating them and keep assuming the worst from them.

It’s common for siblings to have conflicts but if you have intense conflicts, then you must have done something that contributed to that conflicts as well. Based on your answer “hers is the least I want to know after several intense conflicts. We don’t understand each other, we just don’t click” it seems to me like you don’t even try to get along with her. Understanding and ‘clicking’ with each other can only be form if you try to. If you don’t want to hear her than how can you hope to get along with her? Unless you don’t want to get along with her, then yeah, you will only keep making excuses to NOT listen to others.

You don’t know want listen to people’s perspectives, you just want to listen to people’s perspectives if it pleases you. Honestly you sound like you have victim mentality. Keep being selfish and see where it gets you in life.