Just make a clear plan, so you can actually commit to it.
Schedule your writing sessions at a time of day that you feel the most alert and energized, as it will increase your chances of staying focused and motivated. It also helps to choose a time slot that you have control over (don’t schedule your writing time to start at 5 p.m. on the dot if your workday meetings often run late). It’s up to you to protect this time for yourself. Some people prefer all their writing sessions to start at the same time. If your day-to-day schedule varies, you may need to customize accordingly (Monday/Wednesday/Friday 6:30 – 7:30 a.m., Tuesday/Thursday 7 – 9 p.m.). Just make a clear plan, so you can actually commit to it.