I’m so sorry for the loss of your darling son Stephen, @Nicola1964. Your loss is so recent and it’s understandable that you are struggling.
It sounds like you are feeling very alone at the moment and I’m really sorry that you’re not getting the support that you need. I wanted to make a few suggestions that might be helpful, but I know that reaching out can be hard so please, do be gentle with yourself.
There is a busy, active support thread for people who have lost children here: Loss of our son aged 27
There are also organisations which offer face-to-face support for people who have lost a child. The Compassionate Friends support families who have lost a child of any age. You can call them on 0345 123 2304 to talk and to find your nearest group.
If you think it could be helpful to try and make new friends, you might want to look at Meetup.com. There are lots of people out there who may share your interests and you can meet for a coffee.
Take good care, you are not alone.
Seaneen