Strukturiertes Wasser – how good is it for human health?

I’ve been trying to recover from months of sluggishness, brain fog, and general fatigue that no doctor seems to be able to explain. I started cleaning up my diet, cutting down on coffee, and even trying cold showers  But recently, a friend of mine mentioned something about “structured water” — supposedly water that’s reorganized on a molecular level to be more like the water found in nature
I’ll admit, I was skeptical at first. But then I started reading some pretty interesting stuff about how the molecular structure of water could affect hydration and energy levels. Some people even say that when they started drinking structured water, they noticed improvements in focus, skin health, and sleep. That caught my attention because my sleep has been terrible lately.
I came across this website that explains a lot about structured water  and they even have these devices that supposedly harmonize EMFs and structure the water at the same time. It sounds really intriguing, but also… kind of expensive. Before I even think about investing in something like that, I’d love to hear what others think.
Has anyone here personally tried structured water devices? Did you notice any real difference — like taste, energy, sleep, etc.? Or is it just one of those wellness trends that sound good in theory but don’t actually do much?