Each mistake is too expensive, it's a waste of time, but certainly the mistake is something natural that happens to everyone, there's no getting away from it.
The good thing would be if we didn't make mistakes in the decisions we have to make, the fact is that the more we learn, the less we make mistakes.
Depending on the stage I find myself, I make more mistakes, depending on the stage I'm at, the less mistakes I get, the more I mature, the more I learn... in the beginning I made a lot of mistakes, the more every mistake I made, the more I learned and the more I grew.
But in the middle of the walk you need to get more right than wrong. Making mistakes can be normal and so common, and it necessarily happens to everyone over time, but the same mistake should not be made all the time.
To make mistakes is human... To persist in making mistakes is inhuman...
Error becomes a problem even when we don't learn from it, and we keep on making mistakes, even though we know that staying wrong is still a choice.
From each mistake it is possible to learn different lessons, and after each mistake we really need to run after redoing to achieve the right thing.