Well you can pretty much expect this thread to be full of people trying to talk you down from this and refer you back to the other thread you started. I'm not one of those guys.
If I had the same fixation on the structure of my shoulders, I'd start by wearing suits more often. I'd also try lifting weights with the specific goal of widening my shoulders. Give that three years or so. If that didn't work, I'd get on some steroids. If I still wasn't happy, I'd move on to some synthol injections. Then, if the steroids, synthol and years of lifting still left me feeling empty, I'd pay some doctor in California to knock me out and break my clavicles.
Good luck, and be sure to celebrate your journey on social media.