Please accept my very sincere gentle thoughts ~ your experience sounds very traumatic. I would imagine that both group and individual therapies could be helpful for you. I hope that you are in therapy now, working through all of your emotions linked to the experience. I would not expect the difficult emotions to be gone, or even better after merely one year.

While one year can feel like a century, especially when we're suffering, I would imagine a lot of difficult emotions to be linked to the tough experience.

Very gentle hugs sent your way...