I think you are deceiving yourself if you think you can learn how not to be deceived.
The reason I say this is because we all assess reality and truth based on a paradigm of reality and truth that we have already developed and hold to in our minds. And however flawed that paradigm may be, we will use it to determine reality and truth for ourselves going forward. And it's very difficult for us to re-assess these internally held paradigms because we can't step outside of ourselves and look back in with an unbiased mind's eye. So, we are what we think we are. And reality is what we think it is. And these will determine what we think the truth of reality is going forward because they are what we have to work with.
If we are honest, we already know that these internal paradigms of ours are limited, and flawed, and cause us to misperceive and misunderstand ourselves and the world around us all the time. But because we have no easy means of assessing them, or rebuilding them, most of us simply prefer to ignore their shortcomings whenever possible. Whatever we think real is becomes reality to us. Whatever we think the truth is becomes the truth to us. And we're only going to correct ourselves if we're forced to by some specific circumstance.
We can pretend that we are gathering all the evidence and that we're testing it scientifically or philosophically or whatever, and so are developing the "correct" paradigm through which to assess reality and truth. But the truth is that we don't actually have any way of doing that. Because whatever biased paradigm we currently hold is going to be determining what we think the "evidence" is. And is also going to be setting whatever bar we hold for determining the truthfulness of that evidence. There's just no way around ourselves and our innate cognitive biases and limitations.
All we can really do is just stay as honest and open-minded as we can. And try not to hold too tightly to whatever paradigm of reality and truth it is that we are holding onto in our minds and using to assess them. ... Don't allow our egos to constantly auto-defend it, as our ego will certainly do if it's left unchecked.
Cultural Knowledge is like a large mansion, that is supported, with a foundation of premises. This intellectual foundation, often taken for granted, will structure your mind a certain way, like the foundation of a house decides how the house can be built; shape and height. Only in places with extra support, can you safely build higher.
For example, when the earth was assumed to be flat, this single foundation premise, that everyone knew and blindly accepted; matter of fact, would structure your mind and cause you to see a flat world. All your subsequent logic and data collection became structured by that foundation, as people built explanations for the details of their flat earth.
Science evolves when someone is able to sister in an extra beam, to hold more weight, or replace part of the foundation. Before that, even scientists, will see that they are expected to see.
There is a way to find truth. It involves going into the sub-basement of the House of Knowledge, and looking at the cornerstones and foundations premises, to make sure what is being built upon this foundation is not overloaded; exceeding code. In my experience, even if you point things out, people are so unaware of the impact of foundation premises, that they only look at the new construction and assume it must meet code since the logic is sound.
As a modern example, DNA will not work in any solvent but water. Water came first and DNA evolved in water, with water a critical co-partner behind the dynamics of DNA. There is a double helix of water within the major and minor grooves of the DNA double helix.
Yet all the textbooks still show naked DNA, which is not even bio-active in that form. This foundation premise; naked DNA is alive, is blindly accepted, while being obsolete by simple observations. It is a poor foundation premise that persists. It is not easy to change this, since so many things depend on this foundation and if you tamper with a foundation, even for good, cracks can form on the walls. It is often better to ignore the problem, than have to touch up, everything.
I sort of blame this blindness on another foundation premise, which I call casino science. This foundation premise assume life is connected to the world of dice and cards. It tries to explain the co-partnership of water without water using dice and cards. This premise does not promote clarity of thinking and seeing. It see life as a casino of card tables and slot machines. This fuzzy dice approach can be intoxicating.
Statistics is a useful tool, but it is was never meant to be a foundation premise. It is like a hammer being used, as a shim, to raise up the sagging corner of a house. Now it is part of the foundation, buying time before you need to fix the foundation, properly. I sort of try to take the hammer out, so it can used for reinforcing the corner, and not just shimming it to buy time.