Why am I mad at my sister?

You might be feeling mad at your sister due to a specific incident where she may have said or done something that hurt your feelings or crossed a boundary. It could also stem from ongoing frustrations or misunderstandings in your relationship that have built up over time. Additionally, sometimes siblings can unintentionally trigger emotions related to past experiences, amplifying current disagreements. Reflecting on the root cause can help clarify your feelings and facilitate a conversation with her.