What a difficult time to be bereaved, when you cannot look to the physical presence and touch of your family to sustain you.
Only a month after bereavement, is a very short time, I know the feeling of just wanting the pain to go away, but this feeling will be with you some time yet - then you will want it back because you feel heartless at recovering so soon!
For the time being accept your grief and crying, talk to your family, if you can skype or use zoom or any other of the face to face programmes to talk to each other and see each other.
If you have a pet, tell them all about your grief, they can keep listening when even family will think you should stop. Speaking about pain can help.
If you have a garden or balcony, get out into it. If you can do just a little bit of gardening, it will help you. Despite the latest restrictions you can go outside for a walk each day and even if it is just around the block, the exercise and different view will help and most of us have several blocks we can walk round - and the variety will help.
But most of all make sure you eat properly and keep drinking enough fluids. So many people like you lack the impetus to get dressed, eat proper meals or keep hydrated and with family not dropping in to encourage you to do these things, it is easy to slip into malnutrition and neglect.
And you have found us. Sadly, many members, like you, have been widowed and all of us are at an age when we have suffered at least one close bereavement so we understand, and while we currently and inevitably have a lot of threads devoted to coronavirus. We still have a few light-hearted threads, that can lift spirits.
be gentle with yourself.