Blue collar work is better in that regard; you clock in every day at the same time, do a job that doesn't involve computers, often optimized for output so you don't have many lulls of activity, take breaks when the bell goes, and clock out and shut work off completely once you're done.
Meanwhile IT white collar work, especially WFH, requires a lot more self-direction, and since for most people in IT their entertainment is also digital, the boundary blurs by a lot.
Part of me wants a blue collar job.
My research resulted in me getting an ADHD diagnosis. My brain is screwed up. It just has a weird relationship with dopamine and motivation.
Not sure if this would work for you but a low dose Adderall really helps me focus and feel good doing "slower" tasks like work. I would certainly speak to a physician if you haven't already.
I have a child, who is brilliant, and performing great at school but he is already presenting similar symptoms as myself, hopefully I can help him set healthy limits and cope without meds.
For all my progress up there both intellectually and as a person, I'm still someone who will just sit in bed for 1 hour before work and watch brainrot instead of getting up and getting ready for work. Or sit in bed reading reddit for a few hours on a weekend before making myself breakfast.
Once I get into it, it's fine, but the thought of spending ~30-45 minutes getting up and properly starting the day is enough to make me procrastinate hours away :(