EPHRA v6 (non-binding journal, do not follow ;) )

[Shannon]

It's actually, I believe, a side effect of an unconscious mechanism whose name escapes me (my analyst told me what it's called, but I forgot, sorry) which kinda makes me attack myself that I am wicked/perverted/a sexual degenerate through having been exposed to sexual deviancy and degeneracy, repeatedly, at a formative age and so it makes me feel really guilty for having sexual desires, especially if they're of the kinky sort.

And that, in turn, makes me angry because it results in unstable, labile erectile response.

Knowing that, I can suggest that you're going to need to work on that first, which I'm sure you already knew.  Has anything you've used from here helped with that?  Not the erections, but the guilt?