Nanamar I think you have hit the nail on the head - we cannot "fix" everything and that brings us back to acceptance. We have to live life on life's terms.
There is nothing wrong (in my view) - for people who are not religious - to say a prayer to "a Higher Power" or "the God of my understanding" or even "the Universe". I pray at times to all of the above because I find it calming and it makes me feel better. Is that a philosophy? Who knows.
for you, sorry that you are having such a sad time.
Good Morning Tuesday 23rd April St Georges Day