My mum died when I was 30 and am now40, so my grief hardened response to your post is, you're in your 50s, there's a natural order to life that means as an adult you eventually lose your parents, getting into your 50s having had them around for so many significant life events must surely make it somewhat easier?
My mum died leaving 5 of us 31-22, from pneumonia and a congenital heart condition that was exacerbated by the antibiotics, it was horrible and traumatic and changed us all forever. I had my first child at 34 and second at 38, my mum never got to meet them, we never got to argue over why you shouldn't put babies to sleep on their front, why we don't use talk powder anymore or why I don't beat bums for misbehaving. We never got to share any of this journey and my kids never got to meet her. That lies heavy with me. She herself was only 57.
That said, yes, you recover enough to continue with your life. We all handle the grief differently, some of us talk about it a lot, some of us shy away from it, my siblings this is. We've stayed close, we remember the good times now much more than we were able to for the first few years. It's a very difficult grief and particularly a very difficult grief to go through so young.
Now there will be those who read this who lost parents in childhood who could say, well your lucky your mum was there for your teens and your graduation, that she saw you start your career and they'd be correct and they might feel 30 years was a reasonable time to have my mum, my sister who was 22 when she lost her would almost definitely feel cheated out of the extra 8 years I got and she'd be right reall. Please don't feel I'm minimising your future loss op, but you eventually learn to be grateful for all the time you had and to enjoy your memories and all the times your mum misses will hurt but you'll cope better with time partly because you have so many memories of different life stages to call on.