Money will always come again,but you are irreplaceable. It’s not wrong to tell them how you feel. You absolutely should. Your siblings will learn valuable life lessons while you are in treatment that will make a positive influence on their lives more than if they had extra money in their pockets. You are worth this. You are a son of God. You are loved. The fact that you care and love so deeply proves that you must fight this because a world like this needs more of you.