This video from TED-ED gives a nice, short overview of the theoretical and practical parts of effective practice. It focuses on learning physical skills, but it can be applied to any type of learning including language learning. Pay attention to some of the important practical tips for effective practice (also called deliberate practice).
Here's a short list of the tips they mention:
- Effective practice is consistent.
- It is intensely focused.
- It targets on content or weaknesses that are on the edge of one's current abilities.
How to get the most out of practice time:
- Focus on the task at hand (the task you are doing).
- Minimize distractions. For example, the TV computer, or phone.
- Frequent study with breaks is useful.
Remember that you can access the transcript on Youtube.