I think I could give a personal tip on how to stay on the “plateau” and not go up or down. Once there, you could experiment with relaxing, mind control, visualization, etc, etc. But one has to be able to first get to the plateau, and then not fall down, or go over the top.
Getting to the plateau is easy. You just stimulate yourself up to the PONR and stop. If you start losing erection then stimulate a little more. If that is too exciting, or too boring, then try adding or removing visual or other stimuli as needed in order to be able to get on the plateau quickly but not automatically continue to the PONR.
Once on the plateau, and by that I mean a hard erection and a medium-high sensitivity, you should find your own ways to stop yourself before reaching the PONR.
Stopping any stimulation is one such obvious way. And this is an okay thing to do when you are by yourself and your girl is not wondering why you stopped. But that’s not really sexy, is it? Although sometimes it is very useful and you just have to stop for a moment and catch a deep breath. Do not rush. Just stop, breathe deep, let the pulse slow down, and then continue slowly where you left off.
The other way that used to work for me well in the beginning was holding a kegel. Just hold one as hard as you can, your penis will engorge with blood, grow into a huge monster, and after a few seconds the glans will lose some sensitivity. Even if your kegeling does not engorge your glans fully, then it will still reduce your sensitivity. After a few more seconds the erection will start going down. Then you can still keep that kegel and continue going.
Try contracting your stomach muscles very hard, if you can thrust a little but can’t take any additional stimulation. That will move your mental concentration away from your genitals to the stomach. You will turn red in your face, and that will definitely do some energy spreading for you, LOL! You can combine that with a reverse kegel, which would engorge your glans and desensitize it a little.
Once your figure out now not to fall from the plateau, you should learn to relax, channel or spread the energy, and do all the other things that make sex fun. But just being on the plateau for an extended period of time will already make you feel like THE MAN.
As far as orgasms, I would not be too concerned about them. If I get close to the PONR then I feel lots of contractions that feel pretty damn like a real orgasm. Some of them are dry orgasms, but if I get one that is too intense then I may lose some erection for a while. It is pretty damn hard, if not impossible to have a dry orgasm while still continuing any penile stimulation. After about 15 years of practicing and experimenting, I am still finding this part the most difficult, the least consistent, and even sometimes unpredictable. I would recommend to the beginners to stay away from that area in the beginning. You will get close to the orgasm whether you want it or not eventually, so do not rush it. In the beginning your goal should be NOT TO HAVE an orgasm because in your mind, and in your muscles, you haven’t learned to separate the orgasm from ejaculation just yet. So just do not go there in the beginning. Your goal number one should be to maintain the erection and be able to do sets of multiple thrusts without going over. If you can do that, then you are already on your way to a greater happiness! Good luck!