Lots of good ideas on this thread. I'd like to second the idea of getting the legal affairs in order ASAP.

This will help out a lot in the future.

And don't forget yourself during this time as it seems that you are some kind of primary caregiver so,I'm not trying to add additional burdens on you but, It helped me to seek out some kind of " counseling" and psychiatric help just to make sure to myself I was making the correct decisions.

There is a long road ahead of you that you will need to navigate - and I'm sure you will do this well.

Stay strong right now+ no matter how bad it seems, It could always be worse ( but it isn't)

You will find a way through this