Been there, done that. For me? Mom died in 1987; Dad passed in 1982. I can completely understand your loss and sympathize. I have had time to get past it. (Note: Did NOT say "get over it.")
I know you had mentioned her health issues before in this forum. I hope it was at least a reasonably peaceful passage. I lost my parents when they were in their late 70s, but I don't know of ANY time that counts as a really good time for that loss.