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human
[Lord of the Rings] maybe this is a dumb question but WHY did Sauron want to put all of his power into the One Ring? Did he know it was a dumb idea? I mean, its really risky no? What if he lost the ring or something? More so, why even put it into "something"?

My knowledge of the LOTR just come from the films, so I apologies if the reason is provided elsewhere.  Was the idea to gain immortality, kinda like Voldemort where you turn the Ring into a horcrux-like object? Because I was wondering if it was like a phylactery since Sauron was called a "Necromancer". 

But even then, it seemed like a bad idea, he was already extremely strong in that opening of Fellowship of the Ring where he's wrecking the army, what fear had he of dying? 

And if not immortality, then what? I'm just trying to wrap my head around why would Sauron need to disembody his power into an ornament.
gpt
When Sauron was in possession of his ring, his powers were amplified; and contrary to popular belief, when Sauron wasn’t in possession of his ring, he was still at full power without amplification. 

Sauron originally made the ring as the final stage of a years long plan to subjugate the Noldor (powerful smithing elves) to his will. Of course, this didn’t go according to plan, but the Sauron you see at the beginning of the movies is the Sauron with the One Ring. Yes, he is powerful, but even with the ring he is capable of being slain (having been so several times already). 

Sauron made the ring knowing full well that no one (barring extremely powerful beings that wouldn’t get involved) could willingly destroy the ring, and he was right. Sauron also knew that the beings of Middle Earth who could wrestle away spiritual ownership of the ring from him were countable on his fingers. As long as the ring existed on Earth, Sauron would be able to return and the ring would always try to return to him.