I need to get this off my chest, I don’t know how much longer I can handle this

I keep thinking about that night when it happened, I just wish I could take it all back. It was dark, raining, and I shouldn’t have been driving that fast. She stepped out, and by the time I hit the brakes it was already too late. I never called anyone. I took her off the road, walked into the forest a bit. The dents are gone now, the car’s sold, but I still see her every night when I close my eyes. It’s been months and still, nothing. No news, no reports, no one asking questions. That silence after it happened keeps me up at night, the weight of my actions drowning me.