Granted. You can do that, and only that, for the rest of eternity. Like Sisyphus rolling his boulder uphill, you can never do anything else from here on.
Well idk if you're medicated or not, I have autism and adhd, but Lyrica or Baclofen (not necessarily both) have absolutely shat on any stimulants they've tried to give me. Don't know if you've tried that yet, but Gabapentinoids are an entire class that get ignored in ADHD medication.
Granted. You immediately start doing all the things you've been putting off for years.
You become so engrossed in completing every task you've ever said you'd like to do one day that you forget to sleep.
You find yourself completing minor tasks you'd forgotten you'd ever even meant to do in the first place. You stop bathing, you stop eating. Every waking moment is dedicated to completing everything you ever offhandedly mentioned that you might like to do one day.
Eventually you find yourself trying to complete impossible tasks you had only fantasized about and die tragically attempting to fly off a building like Superman.
I have ADHD and I've been dealing with it my whole life. A lot of things can cause executive dysfunction but ADHD is one of the most common causes for that. I will say in advance that you can't cure ADHD (it's impossible) but you can cope with it. If you want to self-diagnose for ADHD you can watch this 3 part video and check how much you relate with that stuff: