If you built your own business: every decision runs through you. Some months move and some stall, and you can't say why. Work bleeds into nights and weekends. You know what should change, but execution feels heavy. The cost is fatigue, isolation and constant second-guessing, under a record that says you are doing great.
If you are a senior associate, or just went independent: a partner's "quick question" at 8:52 pm, and your stomach drops. The brief at version fourteen. Hours alone with a screen, in a culture where showing weakness costs you. Reviews twice a year that decide the next five.
You are an elite executor. What you lack is control of your own state under pressure, and a way to recover that does not cost another hour.
Reacquire 10+ billable hours a week. Results vary, and depend on the task you're doing.