That's a very good point. From experience, the best way of progressing is doing something until it just starts to become comfortable/make sense, before pushing it even further. The harder seems to reinforce the easier once you come back to it.
For example, if you're just starting to get a grasp of alegbra then try some calculus (which uses alegbra as a means to an end), the algebra will be much simpler when you come back to it.
If you spend all your time reinforcing things you're already comfortable with, you're probably not making the best use of your time.
For example, if you're just starting to get a grasp of alegbra then try some calculus (which uses alegbra as a means to an end), the algebra will be much simpler when you come back to it.
If you spend all your time reinforcing things you're already comfortable with, you're probably not making the best use of your time.