[user104658]

Very sorry for your loss, it's a terrible thing to process and can really take time. It'll be 10 years next year since my own mum died (relatively young, I was 28 and she was in her 50's) and in all honesty it's really only the last 2 or 3 years that I've properly processed all of it.

You mentioned picturing her face - try to think of her healthy and in better times. I know it can be very difficult - I had an awful image of my mum's face not long before she died stuck firmly in my head for a while, I found that if you really make the effort to picture better memories every time it comes up, eventually it'll stop being such an invasive thought.