Few questions to repeat orgasm and know how muscle works

Hi,
I have a lot of questions about muscles.
I have been at this for a year with one huge SuperO success about 2-3 months ago with Mindgasm and aneros helix.
That day was without high expectations, with consistent breathing, with perfect tensing without tensing the whole body. I thought after that one time I was already a master and would remember how it happened.
It turns out that I bring new lessons every day, but I don’t know what I bring correct and what I don’t.

I have a problem with
1. distinguishing the PC muscle
2. the style of squeezing them
3. what is a squeeze with a power of 10, and what is an exaggeration?

1 – when squeezing the PC muscle, I should feel the squeezing of the penis and the sensation of “boiling sperm in it?”
2. i can squeeze the muscle as if on a rope with bending the body and zonally without bending the body, which way is correct?
3. don’t know if if if I squeeze at 10 I am not going off the scale, because I start to squeeze other parts of my body like buttocks and abdomen

I have the impression that in the toilet I can stop peeing in two ways, one is to feel it at the anus and avoid clenching the penis, and the other is to withhold urine with the penis itself.

My sessions last 2-4 hours each.
I managed my first super O a few months ago in 45 minutes (first I fired up with aneros helix syn mindgasm lesson 1, then 2, and then after a few minutes without lessons I achieved the goal)

I am ready not to use aneros, because without it I am even able to feel more.

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