Sorry to hear your having such a hard time. Can you get any help carers or anything in for your dad? Will social services not help considering there’s several vulnerable adults there. It’s nice that you want to help but with your own issues it sounds like it might be too much and you probably need to get someone else in to take the pressure off you and focus on getting some help for your own problems. Do you think your mothers tougher on you because she knows you are capable of sorting yourself out whereas she sees your brother as beyond help so just leaves him to it.