Getting to the next step

I purchased an MGX in February of 2008 and used it about three times a week for a year. Experiencing very little in the way of results, I bought a Helix last month, but unfortunately, the Helix doesn’t seem to be any more effective in triggering the kind of pleasure that other members of this board seem to get. I can’t escape the feeling that I must be doing something wrong, so I’m posting this message in the hope that someone might be able to give me some advice that could help.
First, I’ll try to give an account of what I have done so far. I have read the Wiki a few times, and I’ve tried to follow the general advice that appears there. I also read the general discussion forum regularly, where I have also picked up some tips. Most helpfully, I heard about the Hypnaerosession mp3’s, which were very useful in helping me to relax. I use those recordings regularly, along with many other hypnosis recordings that I have downloaded from the Internet. Sometimes, I simply try relaxing on my own and replaying favorite fantasies in my mind.
Before I get started, I make sure that my bowels are evacuated and cleaned out. On some occasions, I’ve taken a hot shower ahead of time and cleaned myself up in there, but it didn’t make much difference in the session, as far as I could tell. I’ve also tried looking at porn both before and during a session. Most effective at getting me aroused has been listening to erotic MP3 recordings while I relax. However, I’m pretty sure this arousal would have occurred with or without the Aneros. I’ve tried at least three different kinds of lubrication. I do my best to go into the whole process with no expectations about what might occur.
During the sessions, I lie down in a quiet, dark room, usually for about 90 minutes. I have tried several body positions (on my side, on my stomach, kneeling on the floor with my upper body on the bed), but the only position in which I can relax comfortably seems to be on my back, with my legs extended at first and then later with my knees bent and my feet flat on the bed, although that position gets tiring. For at least the first 20-30 minutes, I simply relax and breathe slowly, paying attention to the various sensations. Sometimes, I’ll go an entire session without doing any contractions, just trying to listen to my body. At other times, I’ll do contractions in various patterns. So far, none of these patterns have led anywhere. I’ve tried touching my body, aside from my penis, but that also didn’t produce any results. I’ve tried a bunch of different breathing patterns, which do create short-term increases in sensation, but I seem to hyperventilate and need to stop before I get anywhere.
In an attempt to be positive, I’ll give an account of the results that I have experienced. Early on, usually once a session, I would get what I called a “jolt,” which felt like a huge surge of electricity emanating from my prostate. Sometimes these jolts were so strong that they lifted me completely off the bed, and I occasionally got them when I was sitting down without the aneros inserted. To tell you the truth, they were more surprising than pleasurable, and they lasted for only a split-second. Once, about six months ago, my heart started beating rapidly, I saw brilliant colors in my mind, and a warmth slowly emanated from my lower body to my chest. The whole thing lasted about five seconds. I took this, at the time, to be a pleasure wave and looked forward to more occurrences, but I have never felt this sensation again (in over 150 sessions).
I have always felt like a rewiring was definitely occurring because I seem to feel sexual arousal in a completely different way than before. Now, an erotic photograph will give me kind of aching, tingling feeling in the general area of my anus, but off to the side, in the cracks where my legs join my ass. This sensation is pleasurable, but very mild. I also get a similar tingling in my prostate that lasts for several hours after a session, but again, the feeling is so mild that it barely resembles what the rest of you describe.
Lately, I get no jolts or pleasure waves, but I have learned how to initiate what I think are involuntaries. During my relaxation period, I can feel my prostate throbbing in time with my heartbeat. If I hold a light contraction for a while, I can start to feel my muscles begin to quiver, and it feels like my penis and balls are twitching. However, this sensation never gets beyond this plateau. Sooner or later, my muscles get so fatigued that I have to relax, and the feeling goes away completely. I have started trying to initiate the quivering and then relax, but I just can’t seem to get beyond these very mild feelings to something more.
Ok, this message has gone on long enough. I could dwell at length on my frustration or my speculations about why my efforts have been in vain, but I don’t want to tax your patience. If anyone might have some advice for getting beyond this wall, or if there is any specific information that I might provide that I’ve left out, I would sure appreciate hearing from more experienced users than myself. Thank you.