I hope you don't mind if I share an alternative experience - this is not in any way intended to detract from your bad experience, OP. Mine was one of the best decisions I've ever made. It freed me from almost constant pain.
I was lucky in that I made a good recovery. I have suffered no lasting ill-effects other than menopause symptoms because I lost my ovaries. Sex was almost impossible before the operation because of the pain I was in; so that has improved for me.
However, before my operation, I did lots of research on forums, reading the stories of women who had regretted the operation and decided that most of the ill-effects described would still be better than the situation I was in.
I think anyone considering a hysterectomy (where it's not an unavoidable life-saving operation) should assess their quality of life without the operation, and base their decision on how severely their conditions are affecting daily life - ask yourself, how much worse could it get, versus how much better it could be even with possible ill-effects.
I'm sorry you regret yours OP, and I do think it's important that people like you who do regret the operation speak up, because the more information there is out there, the better other women are able to make an informed choice.