There is a kind of progress that does not borrow from tomorrow. It is modest by design. It fits inside the day you have. When you choose it, you give yourself the chance to return with energy and continue the work without repair.
Set a clear boundary for what done means in this session. One draft, not three. Ten careful edits, not a sweep across the whole. A small refactor, not the entire system. The restraint is not timid; it is informed. It knows the difference between force and continuity.
Mark where you stop. Leave a line that says what the next move will be. It can be as simple as a verb and a noun. This breadcrumb spares you the cost of reentry. Your future self will be grateful and quicker to find the rhythm again.
You did less in quantity perhaps. You did more in quality. That is a gain that carries forward without interest, the kind worth choosing in a month that prizes care.