Later, when I was much older, I realised that parts of my thinking seemed to be words - but just seemed. With some effort, it's possible to remove the words from the thinking and just think in concepts - the words are automatically placed on your thoughts, but you are not thinking in them.
Let me explain again : You have a thought, and then the words matching that thought are created. Then you reprocess those words as input. You can also skip the reprocessing step, but for that you have to avoid a fatal mistake - the replacement for words is not images. Rather, you need to simply not try to inteprete the concepts you are working with in your head.
For example, if I say 'empathy', you know what it means without a dictionary definition of empathy. If I write out a sentence - the man felt empathy with his begging son, you can imagine the situation without needing words or pictures, and only when the entire concept is finished do you convert it into words. I.e, in the sentence above, you are not breaking empathy down, you are breaking the entire sentence down.
There is a simple way to discover how to do this - think of some random object. Then think of something related to that object, then something else related to it. For example Book, Page, Letters, Reader. And so on. Just go through a list of interconnected things, but as you do so, try actively to avoid putting words on the concepts. After a while, also try not putting pictures either. You should see your thinking speed up significantly as you improve.