Oh op I'm so sorry to read about your darling boy.
I'm not very good with fancy words, and, I know, there is nothing I could ever say that will be if any comfort to you right now.
From a mum who has been in the position of my daughters life support being turned off, although my daughter was a little younger, I absolutely understand where you are at now and how you are feeling.
When you are ready for support there's a whole community of us who understand you don't wish to be a part of us, but we will welcome you, and listen to you, will listen to your stories about your darling boy, even if we have heard the story 100 times, will will use his name, and celebrate him and mourn him alongside you, whether you reach out on MN or wherever, you will be in undated with support from people who are a little further on this, the most awful journey, with you.
I don't know if you wish to read about the process, I know I did with my daughter, it brought me a feeling of control in a situation where I had absolutely none. If you do then please just ask and I will talk you through what happened with my dd, although my overriding memory at this point is that I opened a window to allow her to finally fly, pain free, and this is a memory that comforts me to this day (it's been many years now).
Once again I am so very sorry, so sorry life is being so cruel to you and your family, and I'm so sorry that you have to go through the hardest thing any parent ever has to go through.
If you don't mind I'll keep a candle burning all day tomorrow to help light the way for your boy ❤
I hope the night is as gentle on you all as it can possibly be.