I'm sorry your auntie has been horrible again. I hope you have at least deleted the message, and spoken to someone about it if you feel able to.
There is no should be able to cope alone, really. Everyone needs some support at times and you have a lot of stuff going on at the moment. If you can't do anything physical wise at the moment, would it help to write a list of the things you will need to do when things are sorted a bit more?