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[Nuggstein]

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[Psan]

Eventually, it felt as if everything was happening at once, and it forced me to stop, right at the peak as if I was right about to exit my body. I've gotten to that stage many times, and I cannot get passed it.

I'm guessing that anxiety is the cause here and you have difficulty in relaxing and letting go.
You don't have to DO anything to exit, its a natural process, you have to setup the right conditions that cause it to occur and you need to remain conscious while the whole thing is taking place. So switch to not-doing.

Other stuff and symptoms you stated are normal and these are actually windows of opportunity for AP.
Best of luck !