Struggling with mother's day coming and having destroyed my relationship with my daughters, along with guilt, shame, among other things. It won't be the first mother's day with no word, I understand but it doesn't hurt any less. Probably more because I know i caused this.
Try making amends not with only words but actions showing them how you love and care for them, it may not be an overnight process but you have to begin sometime.
Just keep on doing the next right thing. Hopefully they will realize you are only human.