i've tried everything

My experience has been awkward. The first time I had a prostate massage done by a friend some years back it was out of this world. I screamed like a little girl - my prostate I realized is very sensitive. During anal sex several times I got prostate climaxes and would stay in a prostate-state for hours where my prostate would throb non-stop keeping me panting and in a climax state. The first time I tried the aneros 2 years ago I had a bit of shaking and the next day was but-horny. But since then NOTHING. I have done the do-nothing method for hours, belly breathing, contractions of all sorts, sleeping with, music, all and everything on the list. I dont feel anything anymore. Usually one start from nothing and work your way up to feeling something. Whats wrong? any advice?