Why doesn't it feel magical anymore?

[Tealscarf]

All my time masturbating, I used to find it very enjoyable. It was pleasant and mostly exciting but now I don't know where that excitement as run off to. Sure, it still feels "nice" when I do it but it doesn't feel all that exciting as it used to. It feels dull. I don't think I'm that turned on as I used to be. I used to feel all sorts of sensations that were not limited to just my genitals but now I feel no sensation elsewhere, sometimes not even as much in my gentials during this. No excitement, just bland. No butterflies, nothing.