Sometimes we read or watch too much, then have all these false ideas about what 'works'.

In Zen Buddhism, they teach the idea of "emptying your mind", or imagining you're a Beginner again and seeing everything for the first time.

Maybe having the Beginner's mind, of thinking "I don't know anything about this", and looking at everything from a fresh perspective without holding on to any previous theories, will give new and useful insights.

This is especially useful if you've collected too much knowledge or theories, and you've become attached to them.

KNOWING a lot about something is not the same as being able to DO it.

There could be a guy who knows 500 pages worth of information on how to make a chocolate cake, but has never made a cake in his life. Then there could also be a guy who can explain in 10 minutes how to make a chocolate cake, and he makes chocolate cakes all the time, and has even won competitions and awards for his cakes.

Who would you rather learn from?

Just because someone knows a lot of theory, doesn't mean they are effective or successful. Collecting theory or knowledge can actually be a form of avoiding doing the hard work. Especially when you take into account that to achieve success in some fields, you only need a little knowledge, then a lot of application.

A little knowledge gives 80% or most of the results. But collecting extra knowledge that gives no results, or 0.01% result, is a way of feeling like you're doing something and moving forward when you're not. You're just avoiding the hard work of applying and practising what you learnt till you gain mastery.

The way to succeed is to find and learn the little knowledge that gives most results, then apply it a lot. You don't master a skill by reading, you master it by practising. Ignore most of the knowledge that gives very little or no results.

If you feel you have too much useless knowledge in your head, try seeing this as a Beginner again. There is no shame in hitting the restart button and pretending to be a Beginner again if it will give you solid results in the long-run.