I had a total abdominal hysterectomy with BSO 3 years ago at 55 and still in peri. I wasn’t on HRT and started HRT right after the surgery.
There is really good information on the royal college of gynaecologists page. Have a search but it was for me the very best information on what happens and recovery. You also need to discuss your HRT and support after hysterectomy as it is likely that you will need a higher estrogen dose. Possibly testosterone and discuss as well continuing with progesterone if you are current benefiting from it. Even if you keep your ovaries, the lack of blood supply can make them fail within weeks of surgery. You need to be aware of that as when you start experiencing the symptoms of surgical menopause, you could be fobbed off by not so knowledgeable GPs with “it can’t be, you still have ovaries”
It has been absolutely life changing for me in a great way. I had issues for about 20 years with endometriosis, fibroids and hormonal fluctuations which were pretty tough. It’s only after surgery that I realised how bad it was. Now I feel well and balanced. No more debilitating fatigue, no more mood swings. I should add that I am quite fit, I exercise a lot and eat healthily and I’m lucky my life is not stressful. I’m on oestrogen, testosterone and since recently taking utrogestan but only every other day as I feel too groggy when I take it daily.