Losses

It matters!!

My wife and I have lost 12 relatives and near relative in a period of 3 years. I have heard about grieving but I do not understand it. How do you know you are grieving or have grieved? What are the signs or are there any? Does it get easier? Why are there more questions than answers? Are there guidelines or rules? How long does it last?
More questions and not enough or any answers.