I'm not sure if I was that someone, but I can say for sure that losing excess weight has been the most important for me. Having reached about 6% body fat, I've the satisfaction of always finding what I see in the mirror beautiful, in a pansexual way. Since I have always been crazy attracted to lithe, fit women (think ballerina, gymnast), I find I've shed the conflicting desire to have breasts to support my chameleon need to embody both sexes.
Now I may be out of place, or at different place, than many others on this forum, in that my dysphoria has had more to do with the waning of youth, than gender mis-match. But I find that I can channel my definite gender-envy into body-building/sculpting and fitness.
Being at 30-year user of anti-oxidants, health supplements, herbal medicines, organic foods, etc. has helped me through the degenerative effects of sleep deprivation, and the stress of a very demanding job. But turning a sexless marriage into an asset has been a real unanticipated discovery for me. Gender frustration has opened the door to recreating myself in a more meaningful way.
It pleases me very much, to find myself more physically attractive at 60, than I was at 20. There's no way that breasts alone would be able to do that for me.