Looking after family before yourself
and just to add my 2c worth... when you look after somebody else over time it can have an effect on you. My father has certain medical conditions and mental and is looked after by mum. Her GP always asks if she is OK, which is nice.
In my job I have chatted when people who look after parents and at their wits end - I am just a parish admin for what it is worth. Someone else before me alluded to setting boundaries. That can be tough at first and that guilty feeling - I have been there and to some extent still am.
My psych has even asked me on occasion... what happens if that does not get done? The only thing is to remember that you are doing the best you can and to only do what you can.