So sorry for your loss. There are no words that I can say to make it better. Time does not heal all wounds. Time does allow us to better deal with those wounds. I do not believe that Science and Religion conflict. One thing that always gave me comfort is that energy never dissipates; it just turns into something else. Einstein proved that. So, the energy that makes each of us unique which I believe is your soul never dissipates. It just turns into something else. She is on a different plane of existence now...Heaven. God Bless you and yours at this time, and always.
I know this is a very difficult time for you. The only pieces of advice I have are these; prayer IS very helpful, and to take what time you need for yourself. My thoughts and prayers are with you.
My thoughts and prayers go out to you and your family. I am truly sorry for your loss. I hope you find comfort in knowing that she is in a better place and no longer suffering.