As someone that considers themselves a "hip replacement expert"…lol, I would say, go for it ! I had my first two hip replacements at the age of 33 . Arthritis is hereditary in my family, but hit me the youngest. I had immobility at first, like you, but then the pain set in because I waited too long.I was also misdiagnosed for a long time, since most doctors could not even fathom that I could possibly need a hip replacement at my age of 33 ! I eventually found a fantastic Orthopedic , and had them done in 1987.Four months apart. They lasted me exactly 10 years , ( I was told that at the time I had them done ) I then had a revision on both. Also a few months apart. These lasted me 14 years . I am on my 3 rd revision now. Had them done in 2011. These , I was told should last me the remainder of my lifetime. Of course that`s if I don`t beat up on them too intensely. But all in all, the therapy was quite bearable and far less painful than a knee replacement. ( which I also had about 4 years ago ) It was well worth it in my opinion. If I had to do it all again, I would. I was back in the swing of doing everything I once did after a few short months. And best of all…..no more pain and mobility back ! And the last ones were even better than the first or second, since medical technology is improving yearly . Less invasive procedures, better therapy , and determination on your part make for a successful end game. Good luck to you !