This approach has the advantage that it lets you decide what's important. I also like to believe that it establishes better connections between the single ideas.
I would say that goals are counterproductive until you are somewhat comfortable but not when starting out. Like yeah sure, you should make some progress but you are in an uncharted territory, the best thing you can do is to walk around a bit and make sure you stay engaged.
If you move to a new city, you probably walk around the neighborhood for a bit, then to the neighborhood next to yours etc etc.