My nan died this morning, help?

My nan was 74 years old and was quite healthy even though she had diabetes and lung disease. She had been in hospital since Thursday because she had fallen over and then been diagnosed with a blood infection. I went to see her on Saturday and she seemed fine - gossiping about all of the other ladies in the ward, with them in earshot. Then yesterday I was riding my bike with a friend and we were about 5 miles from home, when he got a call from my dad telling us to come home immediately. First of all I thought it was something to do with my mum, but then she said that she was coming to pick us up from the park. I thought it was something to do with my dog, but when we got there my mum told me my nan had taken a turn for the worse and we had to go and see her. We got there and she was groaning, her eyes were half closed and she wouldn't let anyone touch her. It was really scary. She got moved to another ward and we stayed with her, she was trying to speak to us and said our names and 'I love you' it was heartbreaking. She was slipping into a coma and now had pneumonia. The doctor said that she should sleep so we left around 1am and went home. I woke up to find that my nan had died because they took off her oxygen mask to clean her mouth and she had stopped breathing at 6am. I went to he house and all of our immediate family was there. We were getting hundreds of texts from friends who had heard the news. My grandad told me that she was going to die anyway because she was so weak - the doctor had told him. At her house it was like she was sleeping in her bedroom or in the kitchen or she was still in hospital. Her hair was still in her hairbrush, and her clothes were still in the wardrobe. Her glasses were in the kitchen and her walkman was under her pillow. Tomorrow we will see her for the last time at the chapel in the hospital and I dont know what to do, help?