One task at a time is the wrong setting for you
Your core self is Gemini and it reports for duty in the 6th house, where the shape of an ordinary day decides how alive you feel. A single long task flattens you within an hour, while three interleaved ones keep all of you switched on. You need work with several channels running at once.
This is worth stating plainly to whoever organises your work, because the standard advice will always be to focus on one thing. For most people that is sound. For you it produces a slower, less accurate result than the version everyone assumes is a distraction.
The list is the whole technology
Your working memory is fast and lossy, so anything not written down is genuinely gone. That is not a discipline problem to be overcome; it is a specification. Keep one external list, in a single place, checked twice a day, and stop trying to become the kind of person who remembers. The list is not a crutch here, it is the instrument.
Where the strain lands
Overload in this position shows up as restlessness rather than fatigue: hands that need something to do, an appetite that goes odd, sleep that arrives late because the day is still being replayed. The reliable relief is rhythmic and physical, and it works better when it is boring. Walking counts more than it sounds like it should.
Reliability is a system, not a virtue
You will not become dependable by resolving to be. You become dependable by building machinery around yourself: reminders that fire without being consulted, a colleague who expects the thing on Thursday, a template that removes the decision. Put the effort into designing the system once rather than into willpower every week, and the reputation follows.
Colleagues get the running commentary
At work you narrate: what you are doing, what is odd about it, what somebody said in the corridor. It makes you popular and it makes you the informal news service of the department. Both are useful. Just check occasionally that the commentary is not standing in for the quieter work of actually finishing, because the two feel similar from inside.
The wiring, not the muscles
Your maintenance is mostly about the nervous system: regular sleep, less input in the evening, and movement often enough that the restlessness has somewhere to go. Intense training helps less than frequent moderate movement does. Keep one fixed hour a day with nothing to read, and treat it as the load-bearing part of the week.
Several jobs inside one job
Look for roles that are legitimately plural: a portfolio position, a job with client work and internal work, a team small enough that you do four different things. Narrow specialist posts will not hold you regardless of the salary. Where the role is narrow, negotiate one adjacent responsibility rather than waiting until you want to leave.
Work friendships made in passing
You know something about everybody in the building and rather a lot about a few of them, mostly gathered in corridors and kitchens rather than in arranged meetings. That informal map is genuinely valuable to your employer and invisible on any org chart. Use it deliberately when something needs unblocking, and it becomes a professional asset rather than a habit.
Finishing what the day started
The practice available here is completion at small scale: one thing closed properly each day rather than nine advanced slightly. That single change does more for a life like yours than any large reorganisation, because it converts motion into accumulation. Pick the last thirty minutes of the day and use them to end something.
Paid for what you can turn around fast
Your earning capacity is tied to throughput on varied small work rather than to one large annual deliverable, so the money follows how well you close things. Price by the piece where you can. It suits the way you actually work and it converts your natural pace into income instead of into a backlog.