Make the next session smaller
“Work on the website” is a reasonable project intention and a difficult instruction to follow. It leaves several decisions unresolved: which page, which part of the page, and what would count as enough for now? You can spend the beginning of a work block answering those questions instead of making anything.
Before starting a session, try naming one concrete result. “Draft the opening paragraph” gives you a place to begin. “Check the mobile navigation” tells you what to look at. Neither finishes the project, but both make the next stretch of attention easier to direct.
Choose a stopping point
A session needs a boundary as well as a beginning. You might stop when a rough draft exists, when you have checked three screens, or when the time you set aside ends. The boundary does not have to promise a finished result. It only needs to make the scope clear.
Keep the larger project in view, then choose a task small enough to work on now. You do not need to break every future step into subtasks before starting. Plan the next useful piece and let what you learn inform the rest.
Make returning easier
When you stop, leave a short note about what comes next. “The introduction is drafted; check the example in paragraph two” is more helpful than “continue writing.” It saves your future self from reconstructing the same decision.
The session record can help with a different question: how much time did this piece actually need? Use that information when you schedule similar work again, without treating a longer session as a failure.
You do not have to make the whole project feel manageable before beginning. You need a clear next action, enough time to try it, and a way to pick up the thread afterward.