I have not failed. I've just found 10,000 ways that won't work. —Thomas Edison.
I will begin my explanation of this topic by borrowing from the famous books The Tunnel by Albert Camus and The Stranger by Ernesto Sabato, narrating—or implying, for the wiser among us—the ending already told at the beginning, with the path itself being the most prolific part of the narrative.
Making mistakes is the method of methods; it is the human virtue that allows us to move forward, going where our ancestors did not have the time to explore, while still erring as they did and suffering through the process of growing.
If you were paying attention, you will have noticed that I made a mistake above (the authors are reversed in the works cited in the first paragraph). But along the way, a question arises: Is a deliberate fault truly a fault?
While you debate for yourself why, what position you take, or whether you will simply wait for my opinion, unfortunately for you, you will keep waiting.
One thing is certain: the final intention is, many times, the very end of a story; the means are imperfect, and the pieces do not make sense independently. The well-known authors I cited are perfect examples of its application in their human works.
Making mistakes is the best method. It is the only one that teaches us with the greatest possible frankness, while also being the cruelest of all. It forces us directly to confront our weakness and limitations in the results of our actions. Meanwhile, the very practice of this method conditions us to reflect on every detail preceding the final mistake. The mere fact of making the mistake again—or of the end mattering so much to us—generates good stress: the stress of change, the kind of stress that has saved humanity a thousand times from the annihilation of its species. To be sincere, what I owe you is a feeling of gratitude:
One should be grateful for the responsibility of possessing a mind capable of creating its own destiny along the path toward maturity through trying. Mistakes are not the enemy of the human being, because they polish our actions and allow us to reach the most sincere result that, within the limits of our knowledge, we are capable of producing at a given moment.
I will continue making mistakes as long as I remain conscious of my responsibility to transcend, and of my recognition that existence precedes essence, to cite Heidegger. That action creates the blocks we call being, but it is by erring in the act that we polish ourselves. A building is constructed only through the precise method, but in order to reach that precision one must try again and again until one is prepared to apply it and reach the end one longs for. In this case, let it be a stable building, one capable of providing enough comfort for science or technology to be carried out within it, and where physicists might discover some strange particle (hopefully dark matter).
In summary: Making mistakes reveals the ontological structure of our existence. In every error, the tension between what we are and what we aspire to be becomes manifest, a distance that forces us to reinterpret our possibilities and to reconfigure our way of being in the world. For this reason, error should not be understood as an interruption of the path, but rather as the event that returns us to the authenticity of our decisions. Ultimately, it is in the awareness of error that the responsibility to continue moving forward is consolidated.
Moreover, making mistakes is what polishes change (if used correctly), the creator of human essence with enough weight to make our existence just a little more interesting.
Fallibilism
To be a little more specific, fallibilism is the philosophical current associated with Charles Sanders and also developed by Karl Popper, according to which science advances precisely because its theories can be tested, corrected, or replaced. This does not mean that science is wrong, but rather that it possesses mechanisms of self-regulation while testing itself.
Science advances not by proving truth, but by eliminating falsehood. That is our precise way of getting a little closer to natural reality.
I firmly believe that sometimes it is simply a problem of human perspective regarding a stressful and negative situation. Stress is not negative in itself at all; it is the excess of the hormone associated with stress that leads, for example, to health problems. But becoming stressed is a natural evolutionary stimulus. It primarily helps us change the current situation that is generating that stimulus. Consequently, the fact that the sensation feels negative while you are in a state that is also negative does not mean that the outcome will be negative. Many times, the outcome is highly positive: we learn, investigate, and transcend, forging ourselves through error and through that feeling of dissatisfaction that whispers to us that we can be more. Always.