I feel like I am constantly feeling regret for all the mistakes I've made in the past, I know that I ruined my marriage which then ruined my kids lives, i constantly think of this and it almost makes me feel physically sick, this happened 15 years ago!!! Why can't I move on, I am now in a relationship with someone but we are falling apart and I think it's because I can't let go of my guilt my regrets I hate myself.