Physcal damage from injury is causing ED

The following is a story of my personal--horrible-- phalloplasty experience.  I'm writing because I really need some help recovering  from a post op injury.

10 years ago, I suffered an injury to the perineum by stretch my penis with a 10 lb weight. The injury occurred 9 months post-op PE surgery. The surgery must have extended me to a point where the perineal body was in danger of pulling.

One day after 6 months of no visual gains from stretching, I gained nearly 1/2 inch. I should have quite while ahead, or seen the possibility of danger but alas did not. The next day, as soon as I put on the weights, an unusual--uncomfortable but not painful--pull was felt at the perineal junction between my bulb. cavernosous and sphincter. The months that followed consisted of strange sensations of shifting muscles, tingling sensations, tightness, swelling, shooting anal pains, and mild hemorrhoids.

10 years later, I am experiencing the same discomfort to a lesser degree(which are exacerbated following orgasm). The angle of my erections has shifted down 20-30% and my erections are much weaker (they used to be seriously strong). Especially when standing, I can feel extreme tightness in the area while engorged. Sitting forward seems to cause the now too familiar tingling sensation. The associated perineal muscles are perpetually taught and ridged to the touch. The doctor asked me to start stretching again (mildly), and after just the lightest session possible, I still ended up aggravating the injury.

Any insight would be very appreciated. What might the true problem be after so long? scare tissue? inflamed pudendal nerve? nerve damage? Are their any possible solutions? Are cortisone injections a good idea?

Thanks.