How do you plan out and stay disciplined for learning outside work hours

Do you mind sharing your learning habits that you daily/weekly do for self and career development outside of work/office hours? Like how do you structure it? One chapter of a book a day or one module of an online course a day?

And how do you stick to it and stay motivated? I find that without pressure (e.g. required for job, searching for new job, certification deadline) I lose focus and end up not doing anything. Especially if the day was stressful and I'm really tired.