You don't suck. If you did you would not acknowledge it and work to fix it.
I have never worked a Dutchie. But Tygo sounds a bit like some Mals I have worked. They overstimulate quickly and get sloppy and rude.
The flicking if the toy is easily fixed. Sounds like it is making him too excitable. Use long moves, a couple of misses, but don't flick it everywhere. Give him a steady and calm target. Keep your voice even. He does not need the extra ramping up.
Good Luck. It sounds like you are in the right track.
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