Hi be-bop.
Sorry to hear the sad news. I think you sound right on track, especially two things:
1 -- Your daughter having the courage to say her goodbyes, that's a big thing. I speak from personal experience. Good for you to help and good for her.
2 -- It does get easier with time.
Take care of yourself, and your family. Be kind, give yourself a break, you're doing ok, you're gonna be ok.