[arandr0x]

I'd like to submit the possibility that in a lot of cases dopamine is doing its exact job (which seems to be ranking your brain's predictions and facilitating learning of patterns) -- if you are correctly able to predict with high confidence the outcome of whatever you are wanting to do, then you'll end up not wanting to do it anymore (because you'd learn nothing from it -- and because the pleasure from imagining doing it is just as real). The solution is to attempt harder stuff, things that you can't right now predict, where outcomes are still uncertain, things that might bring you suffering and not just pleasure.