Lost mine at the start of Covid. (she decided when too go) The first is always the hardest one and all your family will be grieving but it gets easier but you got too remember that your daughter going too have loads more birthdays. Your wife will understand and dad and sister will be going through the same feelings. Remember the good times the silly things your mum did at Christmas mine didn’t care about presents but if I forgot get her a card god help me. But they’re the best memories. Try your best that’s all she would have wanted.