I have similar experiences though a different usage graph. My shipping peaks were college (textbooks and college needs/wants) and early in owning my own home. After that point I didn't need as much delivered, so many of my purchases had moved digital (books, music, videogames) or back to retail stores. I realized late in 2020 that the only two Amazon purchases I made that year (in 2020!, with quarantines and lockdowns and it being weird to visit physical stores, I still made more retail store purchases than Amazon purchases) were inconsequential and neither of them shipped as Prime delivery because all of them I took a discount to wait a week for (because there wasn't any rush).
In the meantime I was fed up with Prime Video and wondering why I was paying for it.
Between the dark patterns cancelling Prime and the many dark patterns trying to get you to join Prime I also stopped feeling like a welcome customer of large sections of Amazon's website and have gone even more back to boring old retail stores. My biggest remaining relationship with Amazon is because of the kindle, but their worsening DRM decisions do keep me wondering if I need to explore another ecosystem despite kindle's hardware advantages (including the possibly sunk cost that I invested in too much kindle hardware).
In the meantime I was fed up with Prime Video and wondering why I was paying for it.
Between the dark patterns cancelling Prime and the many dark patterns trying to get you to join Prime I also stopped feeling like a welcome customer of large sections of Amazon's website and have gone even more back to boring old retail stores. My biggest remaining relationship with Amazon is because of the kindle, but their worsening DRM decisions do keep me wondering if I need to explore another ecosystem despite kindle's hardware advantages (including the possibly sunk cost that I invested in too much kindle hardware).