Welcome to PC Sarah!
I'm sorry to hear that things are so overwhelming for you ... i understand how that feels. You sound like a really good person though, really caring about others and especially your family. Feel free to message me if you ever want to chat ... i may not be in the exact same position as you, but i've been told i'm a good listener, and i bet i can relate to some of what your feeling.
Take good care of yourself
Jacqueline