My question on Apollo was answered when the posts came in. My question was to question the images, and that has happened. The answers were in days and days ago.
And you've expended considerable energy both then and now trying to convince yourself (and others, unsuccessfully) that in that process you've somehow been horribly victimized. Gaslighting really doesn't work around here, Icarus1.
Regarding orbits, ka9q has given you a key bit of understanding in how the energy of orbits work. An orbit has constant energy, but simply trades it back and forth between two forms. While that's correct from a physics standpoint, it doesn't usually offer a helpful way of visualizing how orbits maintain a particular shape.
A tidbit from earlier in the discussion may help. Instead of thinking of a tiny object orbiting a relatively massive object, think of two relatively same-sized objects. One can be put in orbit around the other according to the same physics, but it will be more apparent that instead of one orbiting the other, the bodies orbit a common center. When the two bodies have roughly the same mass, that common center will lie somewhere between them. This is true for a planet and our sun as well, except that because of the much larger mass of the Sun, that common center lies not very far from the geometric center of the Sun, so it looks like the Sun is a sort of gravitational "master" and the planet is a sort of "slave" and that the Sun will drag planets along with it.
The noodle-baker comes from understanding that the reckoning of a two-body orbital system as it moves along some other path is via that common center, not either of the two bodies. The velocity state of, say, the Earth-Moon system along its orbit around the Sun is most properly reckoned from the common center of that system, which lies somewhere along the line connecting the geometric center of the Earth with the geometric center of the Moon, but obviously within the boundaries of Earth's surface. Does this help visualize better how systems of orbits work?