Learn how to progress slowly but steadily

In the past, I used to make goals which were too big and not measurable. I thought I can finish them on them but unfortunately it turned out to be not. Recently, I start to break my goals to be a smaller and measurable target. For example, instead of aiming to finish writing the whole chapter within a week, I break my goals into small targets like writing a small section of the chapter every day. At the end of the week, all my small target can be achieved because it is more practical and reasonable.