Hey Lars. Thanks for sharing your story, so many of us are in a similar situations but dealing with it in isolation. After more than a decade of being a carer I can offer you the following:
Take care of yourself and your partner. Get some outside help if you can so you can take some breaks.
Find things that bring you joy, treat yourself.
Try and help your daughters process things and come away better people for the experience.
Treat your son with love and dignity.
Find some things in your life to be grateful for and dwell on them, it is impossible to feel sorrow and gratitude at the same time.
Take care of yourself and your partner. Get some outside help if you can so you can take some breaks.
Find things that bring you joy, treat yourself.
Try and help your daughters process things and come away better people for the experience.
Treat your son with love and dignity.
Find some things in your life to be grateful for and dwell on them, it is impossible to feel sorrow and gratitude at the same time.
Sending the hugs back to you and yours.