Undisciplined siblings + tragedy = hard-to-bear-with family!?

This is all very sad. You are so young to have such burdens. It may take someone other than yourself to fix things. You probably wouldn't be able to get any of your family members to counseling, but they certainly need something. But in the absence of that, I think you should be the one to take steps toward a better understanding of the situation and what to do about it You need help dealing with your family. Being away from all of them would no doubt be better for you, but you sound to me like a person who will stay with your family through thick and thin. A few phone calls to the right agencies should get you started in the right direction.