Self-paced courses give you freedom, and freedom is exactly what derails most learners. The fix is small, repeatable structure.
Book the time. Two fixed 45-minute slots a week beat a vague plan to 'study more'. Put them in your calendar as real appointments.
Finish a unit, not a session. Ending mid-lesson makes restarting harder; aim to close each session at a natural boundary.
Apply it within 48 hours. Use one idea from each module at work that week — application is what converts a video into a skill.
Take notes by hand, in your own words, and keep them in one place. Re-reading five pages before an assessment is far more effective than rewatching five hours.
Tell someone what you are studying. A colleague who asks how it is going is a surprisingly effective accountability system.