Resulting.
This is the common mistake of using the outcome of a decision to evaluate the quality of the decision itself. It is the fallacy of concluding that a good outcome must mean you made a good decision and, conversely, a bad outcome must mean your decision was flawed.
Why does this matter? A growth mentality (a crucial characteristic) involves learning from your successes and failures. If you miss that external factors or randomness (i.e. luck) turned a good decision into a bad outcome, or a bad decision into a good outcome, you won’t learn the right lesson and grow.