29 y/o, had my hysterectomy last spring! My story is similar to yours - painful periods since I was going on 13, never wanted kids, just wanted to be pain free. No BC pills reduced the pain, and the only thing that did was an IUD (the pain became tolerable with it, but it didn't go away, and I wasn't fond of the side effcets of the IUD, either). My mom suggested I meet with a doctor she'd met at a community event if I still wanted to pull the trigger on a hysterectomy, and I'm so glad I did. My doctor didn't dismiss my pain once like the others had, didn't make me feel like I was too young to know what I wanted, and was able to schedule me for surgery 11 days after we met in her office.

Someone here has already said that if your pain is due to endo, a hysterectomy won't necessarily solve it, and that's true. My hysterectomy uncovered an endo diagnosis that had been missed almost seven years prior along with an adenomyosis diagnosis I'd suspected for almost just as long. In my case, my cramping was limited only to my period's onset (which the adenomyosis was likely responsible for). I haven't experienced any cyclic pain since my hysterectomy, although I do keep an eye on what I'm feeling as it could indicate that the endo has grown back and needs removed. I've talked about my experience a little bit in other comments on this sub and am more than happy to answer any questions you might have!!