ruby I hope you are feeling better. News like you have had is a shock and not easy to deal with.
I really would not be too concerned about your son visiting a university without you. Living accommodation isn't sorted out until after A level results and the university place being confirmed so you would get no idea of what his living accommodation would be like and apart from physically seeing the campus and buildings, you will get little idea about what his life will be like at university once he is there. A university open day is a bit like a sightseeing bus journey around a town you have never been to before. You can see what it looks like but have no idea what living there would be like.
Concentrate on caring for yourself and your father. It looks as if your son is making practical plans to achieve the independence you want him to have.
What were the first ever records that you bought and when?
Angela Rayner lashes out and calls Sunak “pint sized loser”.