'Coping' in life doesn't necessarily mean entirely eradicating your issues IMO. It's more about finding a situation where they don't matter so much. Extreme example but I believe that most people with ADHD would manage just fine if they won the Euromillions because they'd just outsource the shit stuff and wouldn't need to dance to anyone else's tune.
I was really good at my corporate job in terms of final output but it felt like it took my entire life focus to accomplish it. I now earn more or less the same amount and don't really have to do anything strategic or keep pulling my attention back to a 150 page bid I've been writing/formatting for weeks.
I just turn up, jump in my truck/machine, and check the tablet to see where I'm loading from and where I'm going. Then I drive there, load, and head to site. I'm always either waiting to load, on my way to site, or pouring concrete/delivering aggregates to site.
There's a lot of different skills I need depending on what I'm doing - like controlling the flow while pouring into a 80 foot deep foundation or into a truck mounted pump with a boom for pumping it up to a slab on the 30th floor, or slowly driving along with two chutes attached keeping the chutes aligned with a pipeline I'm filling in). But it's still always waiting, driving, or pouring.
The biggest factor for me is not feeling mentally tied down for want of a better phrase. Like when I have to keep focusing on something I'd rather not. When I'm waiting I'm on my phone. When I'm driving I'm listening to podcasts or music. When I'm onsite I enjoy doing the work because it sort of feels like playing a video game in a weird way. You're sitting in a cockpit controlling something with lots of levers/switches and revving the fuck out of things.
I love jumping in the shovel and moving boulders around or driving up an aggregates pile so the back's almost scraping on the ground and you're looking at the sky. Even when the novelty wears off it's never soul destroying like sitting in a chair all day was for me. But I usually try something new when I get bored. I've driven tippers, concrete mixers, flatbeds, 32t dustcarts (bigger version of the council type bin lorries used for collecting cardboard bales and bulk recycling from factories etc), loading shovels, 100t articulated dumpers, refrigerated box trucks, mini mixers, FELs (waste trucks with big spikes/arms on the front to lift industrial skips and tip them overhead), ROROs (roll on skip trucks that drag the big industrial skips onto the back with chains and pulleys), booze deliveries where you're roping barrels down into cellars. Probs some I've forgotten.
Am also learning to operate the plant and batch concrete which is really interesting. I'm able to jump on the shovel to load the aggs into the hopper or conveyor. Then add all the admixtures and ratios on the system. Then mix and pour it into a mixer truck (which I could in theory then drive to site and offload).
I don't feel my ADHD is in any way an obstacle to any of the above. If anything it keeps me zipping around doing stuff like a duracell bunny and constantly checking all my mirrors/cameras rather than being complacent - I have slightly less bumps than most of the operators and have never told an employer I have ADHD. I only struggle with motivation when I need to do something boring like write a long document about safe systems of work and compliance stuff etc or sit through a CPC course, but I only need to do 35 hours CPC every five years.
It defo affects me in other ways but I think if you can get your job locked down then everything else is much easier. IME motivation usually struggles the most when you're already stressed from other factors. When I worked the evening shift for Tarmac I was stood down on full pay every Friday as the builders travelled home for the weekend. My weekend would start at around midnight on Thursday and I wouldn't need to be back at work till about 7pm Monday. I'd get all my housework and shopping done on the Friday morning/afternoon and then have all weekend free and lie in as long as I wanted on Monday. It was so much better than my office job.
EDIT: I sound like a right know it all. 🤣 That's not the case at all. I know most of my mates would hate my job in reality. I usually just find it easier to be direct and say what I mean. My point is that I've managed to find something that works for me and it's kind of made my ADHD a non-issue. But I was pulling my hair out when I was a bid manager!