I had SRS in 1974 at the age of 24, almost 40 years ago.
From earliest childhood I had "severe body disphoria". I naturally and inherently identified as a girl long before I understood gender and was in constant danger of self-mutilation after the age of 8 when I understood the physical differences. Through my teens I lived a double life - pseudo-boy when I had to and girl the rest of the time - and luckily some hormonal abnormalities helped me stay quite androgynous . I was about 10 when I heard about Christine Jorgensen and wanted for all the world to follow in her footsteps. I was 15 before I ever heard the term transsexual and spent the next 9 years of my life chasing treatment. I started HRT at 17 but in 1966 there was nowhere to go with it. The only surgery was in Europe and was horribly expensive, WAY beyond my means. By my late teens I was highly suicidal because life was passing me by! I just wanted a normal (female) life in every way possible. (In those days there was NO legal recognition or tolerance before surgery.)
When SRS became a possibility at age 24 (1974) I jumped at the chance! It was my ONLY chance to survive.
SRS cost me every cent I had, got me disowned and banished from my home town but having nothing and being a girl was still WAY better than being dead forever! I never knew what freedom was until I walked out of the hospital as ME. (Yes, in those days you had to be young and passable to get surgery - my pre-surgical meeting with the doctor was more like an audition LOL!)
Life was not always a bed of roses, being alone in the world, no support network, starting over from nothing, but I was able to face all the hard times and the crisis that came along because I was ME, unfettered and uninhibited. I became the kind of woman I had always admired - outgoing, social, funny, vivacious, energetic, and sharp. I had not even suspected my potential prior to SRS.
Surgery was pretty primitive (by today's standards) but acceptable, good enough to rarely be questioned by intimate partners, which was far ahead of where I would have ended up with self-mutilation!
In over 39 years I have regretted many things but NEVER, not for a single moment, regretted SRS. I wish it had not cost me everything, both money and family, but still no regrets.