Here's the "theory", now practice. What are the results? Change cadence, change effort, how do the results compare?
Learning isn't not a waste of time, if the student is an earnest learner.
This applies to life too, doesn't it? Putting in so much effort, not really going anywhere. What's the "theory"? What to change? What do you want anyway?
Well, knowing what you don't want is a start.