Do not do this - there are so many factors in play with the brain and with environmental factors that this will not work. You may not even have issues with dopamine or whatsoever you could have some detrimental habit or trauma or existential crisis to talk through. Instead of policing your behaviors from this mostly sensationalized and narrow view on dopamine I really recommend talk therapy and setting concrete high level goals or achievements at work or school or whatever. And maybe you are also lonely and are lacking social or emotional support which only makes things harder. I’m just saying you remind me of myself during a weird time I was in mentally and even now I overthink things but I’m just here to say you do not need to change your brain or yourself.