Thanks for your advice and sharing of experiences.

I still have difficulties keeping focus and not just thinking around the corners of business (which is easy, a pretty simple game, a maze you can observe from up high), but also of my mind (a BP maze, no perspective: very difficult game, lots of paradoxes, you never know exactly where you're at).

I try to conditionally plan, so that I do certain things only when in a certain (BP) state, and keep a very narrow focus and fixed trajectory, but it's difficult (still a fun game). I miss opportunities: there is a considerable cost.

I can really only do what I do now. I know that anything not planned during many depressions might work during a period of mania, but won't last.

I'm not able to work with anyone as an equal, which is fine.

I am sure there must be at least a few more that run a business or were/are serial entrepreneurs like that.

Boom/build and bust does sound like BP and/or a similar personality. The freedom may have kept extreme problems at bay. Getting bored or under-stimulated is very, very typical, I'd say.

Choosing what to do where (your dependence and the kind of people around you) are important decisions in the "treatment"/use of BP, I believe and have experienced.