I have the same problem. But the more I tackle it in reasonable ways, the better it gets. Here's some pointers that work for me:

- enough sleep, rather get in bed early than late as the quality of the sleep depends on natural rhythms

- engage with people that are affected by my work - this is important for motivation and to keep track of what actually matters

- operationalize everything, say out loud what to do next

- being honest when I have bad focus, talk about it

- trust my instinct and do the right thing, if I don't I quickly lose focus and motivation, if opinions don't align learn why

My personal joke about this is "I used to be a 10x developer but then I took an arrow to the knee".

Many, many years ago a colleague wrote about the experience of being bipolar and choosing to stop taking the lithium for a temporary productivity boost and subsequent crash.

> choosing to stop taking the lithium

Having been unmediated and undiagnosed for most of my life, mania is a hell of a drug. But the cost is high... really high.

Sounds like ADHD hyperfocus.

There can be that. But also some managers do not like you wander off task. So stick in your lane stick to your tasks... So eventually after years of that you just do only what is needed and skip anything else. After a few of those 'that is very nice but...' conversations you just say screw it and coast. Every once and awhile I get a burst where I can propel my group forward. But then usually I feel like I am bolder chained to them and dragging them down. More than likely I am just average and doing OK.

Was just coming here to say, this is my exact situation