Risking to repeat myself, but this is exactly why medical cannabis is a valid option.
The dopamine/reward processes in your brain are controlled by the inherint endocannabinoid-system. More and more evidence exist that many neurodivergent people (including adhd, autism and even schizophrenia) suffer a lack or imbalance to native endocannabinoids. I firmly believe the right mix (which should be the personalized for each person) can do almost Miracles to our well being, focus and ability to function.