I used to be proud of how many things I could juggle in a single day. Client call, then a proposal, then a quick check of analytics, then back to the proposal, then a message from a different client entirely. It looked productive from the outside. What it actually was, once I started paying attention, was a slow leak that drained far more time and energy than any single task ever should have.
Task switching isn't free. Every time attention moves from one task to a completely different one, there's a cost to disengage from the first and a separate cost to fully load into the second. For ADHD brains specifically, that second cost, getting back to full depth on a new task, tends to be higher and slower than average, which means the same amount of switching produces disproportionately more lost time than it would for someone else doing an identical day.
I started tracking this out of curiosity rather than discipline, just noting when I switched tasks and how long it took to feel genuinely re-engaged afterward. The number that stood out was how often a "quick check" of something unrelated turned a task I could have finished in twenty focused minutes into an hour spread across three separate re-entries. The interruption itself took thirty seconds. Recovering full depth of focus afterward took far longer, every single time.
The instinct that causes this, at least for me, is often boredom or friction avoidance. A task gets slightly harder or slightly less interesting for a moment, and jumping to something else feels like relief. That relief is real in the short term and expensive in the long term, because the task you left doesn't just pause, it has to be reloaded from a colder start than it feels like from the inside.
What helped most was structural rather than willpower-based. I started grouping my day into single-project blocks with a visible timer running, and treated the urge to check something else mid-block as information rather than an instruction to act on. If a genuinely urgent interruption exists, it goes on a short list to handle at the next natural break, not immediately, unless it's a real emergency, which is rarer than it feels in the moment.
Closing communication channels during these blocks mattered more than I expected. Notifications are built to interrupt, and every one answered mid-task is a full switching cost paid for something that, in almost every case, could have waited twenty more minutes. Batching communication into its own separate block, entirely outside of project work, removed most of the switching temptation before it even had a chance to happen.
If your days feel busy but your actual output feels thin, task switching is worth auditing honestly. Track how often you move between unrelated things, and pay attention to how long it actually takes to feel re-engaged afterward. For an ADHD brain, that recovery time is usually longer than it feels, and reducing the number of switches, not working harder within each one, tends to be where the real time comes from.