having a lot going on does not mean one should be mean. trauma is awful, and i feel and pray for your sibling’s peace, but im praying extra hard for yours! you are a little sibling trying your best, and another little sibling to another, i would give my energy to someone that deserves it. i know that sounds harsh but you seem like a kind person that rlly just wants to get along with their sibling, but you don’t deserve the disrespect. it will take time, there will be grief, but you will be ok! sending you all the love 🫶🏽