My experience is that there are lots of us in the same boat with you.
*HUG*
Hard stuff. Those of us who choose to go NC, imo, don't choose it lightly. I've been NC with my older sister for 2 years. Not an easy choice, but it was the best, least harmful, choice for me.
My experience of people who have told me to "just get over it/life's too short/you'll regret it" is that they weren't there.
That said, I recently started a God Box where I write down my unsolvable problems and ask my God to fix things. I believe that I don't have all the answers or solutions. Since I have tried everything and every way I know how, I'm open to experiencing possibilities that are currently outside my understanding.
Who knows what will happen? I don't, but I will take care of myself today.