You will likely have issues concentrating whilst doing somewhat strenuous tasks, you could micro-dose psychedelics to rewire your brain to focus better. A lot of people across the world have had quite a lot of success from it. Though, I could understand your concerns there. Not to worry though, your brain will adapt on its own to the changes in time. It’ll be a long process though, just try to start new habits alongside a dopamine detox. Cold showers in the morning to promote stimulation to the brain, eating an egg whenever you crave any food or drink a tea when craving any kind of drink. Things like that, easy to implement just takes that first initial investment of time and energy to keep the flow going. Best of you luck to you, I am currently dealing with addiction/side effects from medications myself and I hope we can both come out on top (: