I don't think I could express this any better than you have here. It's bizarre to me that loss is everywhere yet almost no one seems to have personally experienced it. People have tried to empathize, but they can't put themselves exactly through what I have been through. Every sentiment rings hollow. Every bit of advice stings. It's easy to drop a word or two on a hurting soul, but it's more harm than good if you don't actually understand the loss.
This is true. Most of the time a lot of people cannot understand the pain because only the person that feels it can feel it deeper. They can encourage but only the person with the shoe knows where it hurts.