You have been deceived. We all have.
You don't have to read every book from cover to cover. You can just pick the most important parts and move on to the next book. Of course, reading the examples and stories can help you remember the lessons better. But, it's not required.
You don't have to go through everything in a module in order to do a job effectively. You can just select the lesson you need for the moment and apply it. It's more effective that way. In case you need to learn something else, just go back to the module.
You don't even have to take down notes and deep dive into everything you read. You can just browse and go through everything quickly and go back to them in case you need to.
You don't have to pass a test the first time. You don't even have to take tests at all. What matter more are the lessons you learn and the results you achieve. And hey, it's okay to fail. Just get back on your feet and try again. Besides, you learn more from your failures than your successes.
You don't have to get things right the first time. You can always test and experiment. You should always test and experiment. Success is never guaranteed and what works today may no longer work tomorrow.
Now that we're living in the knowledge age, it's important to equip yourself with information. And there's an abundance of information out there because of the internet. You can no longer afford to deep dive into every information you receive.
What's more important is applying what you've learned. If you deep dive into everything you read, how can you have the time to apply what you've learned? More importantly, how can you have the time to create?
It's a fast-paced age. You can't afford to get left behind. You must unlearn everything you know about learning in order to learn and learn quickly.
It's not comfortable. But, change never is.