Yes I think sundays are the worst day. Lost my husband and father within 3 months of each other, two years ago. totally lost., but weekends are the worst when you are on your own. Both my sons live away.
It sounds as though you might have meant to post this as a reply to this conversation: https://support.sueryder.org/community/life-after-bereavement/sundays-are-worst
If you re-post it there, it will probably be seen by more users.
I’m so sorry to hear about the loss of both your husband and your father. It sounds as though you feel quite lonely. I hope this site can help you feel a little less alone by connecting you with others who’ve been through similar experiences.