In-depth study of martial arts can be compared to the painstaking work of an university researcher, we must:
Have the foundation for understanding and applying
Gather information and be able to find the right sources
Analyze and understand the theory
Apply the theory with the practice
Re-process the theory and the practice with our mind
It is not so important if our sources of information are teachers, books, video tutorials, articles (etc.), it is fundamental to understand that it's never enough a single vision to be able to say that we have acquired a new knowledge (technique, strategy, etc.).
We must give meaning, body and durability to what we analyze, in a word we need Method. Let's imagine we want to learn a new lever technique, here are 10 useful questions about the quality of our study:
Is our body ready / suited to perform this technique in a safe and effective manner?
Our martial cultural background is sufficient or we have some gaps?
The technique is appropriate for us, for our body and our style of fighting?
Have we seen enough times the technique? If we close our eyes can we remember every movement / detail?
Have we stored in our mind / body the technical key points?
Have we tried the execution of the technique enough times?
Is the quality of our performance stable or imperfect?
Have we informed about and / or tested any countermoves?
Are we able to perform the technique with an uncooperative partner?
After one month can we apply the technique instantly and instinctively?
If we responded consistently to each of these questions it means that we have followed the right path and we acquired the technique in a stable, profitable and lasting way.
In all other cases probably we have only wasted our time, it makes no sense to limit ourselves to:
Go to internships without reviewing what we have learned
Read books once without really studying what they contain
Watching video once without attention to detail, without trying
Let's be clear: a theoretical knowledge of a large number of techniques is a very good thing but if we are speaking of our own, those that actually we would use in case of real need, they must be trained, absorbed, made our at 100%.