In reply to Lesley:
My mum had a hysterectomy in 2018, though she was a couple years older than you.
From memory, she took about 18 months to really get stuck back in. Though a lot of that was rebuilding the confidence more than physically healing; I imagine it's extremely common experience that getting the head back into it takes a while. She had some kind of ovarian cyst (melon sized according to the surgeon!) which meant that her op was pretty intense, so depending on your situation you might be a fait bit quicker.
Since then she's done 150 Munros, learnt to lead at the age of 55 and has come back even stronger than she ever was!