>But as I went further into the session, the intensity of the energy actually became so high that I almost couldn’t handle it.<
You're making some rather wonderful progress there, even!
Learning how to generate these awesome orgasmic sensations is one part of the KSMO journey: another, and as important a part, is the growing of your tolerance of these extreme and mind-testing sensations. Fortunately, the two aspects track reasonably well and ratchet themselves forever upwards more-or-less together.
But you might find sometimes that one gets a bit ahead of the other. If so, don't let that be a cause for alarm. I'm sure you will find that as you progress and experience the growing orgasmic power you will be able to readily handle all that you discover without discomfort.
Keep up the good work!
Mog