I'm so sorry to hear of all your losses. I can't begin to imagine how you go about processing so much grief in such a short time. I hope that you find some comfort here. At least we understand some of what you are going through and may have some useful suggestions to make that might help you. It helped me just to know that I had found a place where others were sympathetic and supportive and understood what I was going through after I lost my own mum in 2017. At least you know you are not alone and have a place to talk about how you feel.
I suppose all we can do is appreciate that we were able to share time with those we have lost and be grateful for the impact they had on us during their lives and the legacy that their memory leaves with us that we can take into the future with us. Loss is hard and lonely, but our lives would have been the poorer for never having known them and the pain of loss is part of the love we still feel for those we have lost, and I am sure none of us who have lost someone would ever have chosen to be without that. Do whatever helps you get through this and just take it one day at a time.
I wonder if you have considered counselling? It does help to talk, but counselling isn't for everyone. I think the next best thing is to write it all down every day, how you feel, what you are thinking about, what you would have liked to say that you perhaps didn't. It does help get it out of your system and helps you process it all somehow and relieves some of the pressure.
Keep talking to us here too. Take care. Sending you an understanding hug.