I’m the same. I’ve used many and forget about them eventually. I used rubiks cubes constantly for a few years, but that was a more central interest. I fidget with random things for a day. I’ve used fidget spinners and putty and all sorts of stuff, but sooner or later I’m bored. I mean, they do the trick temporarily. Recently I made my own silicone “picky pads.” They’re a fine activity to become absorbed in, possibly regulating, but they are not something to do in the background and don’t compare to cuticles. My current thing while reading is to spin a prayer wheel because Buddhism’s my special interest. Sorry this is a little pessimistic, I am very understimulated right now.