This is true. We are human and so is success manager. We all are bound to make some mistakes in our decisions but what would distinguished a success manager from rest is that he takes his learning from mistakes and move forward while others might cry, some would find excuse and some start playing a blame game.
Understanding the situation and reason of your mistake so that you would not repeat it again is the imperative for success manager. You cannot effort to make same mistake twice, remember only idiots do that.
To ensure that you understand this correctly, first thing you must learn to do is that never try and get in defending or refusal mode. Accept what happen, you are success manager you own the situation and it's you who is responsible for failure / mistakes or success. So always accept the situation first and then evaluate it to understand where you went wrong. Step by step a complete retrospection of incidents that created the failure should be looked into. Ask yourself at least 2 question at each step;
- Was the out come here was as per my expectation?
- Was there anything that I could have done to ensure a better result at this junction?
Practice this, you know the answer which I am sure of. More as I learn.