((golden_eye)), the important thing to remember is that while you have experienced big disappointments in your life, you were continually learning from each challenge. If you sit and think about it, a lot of these experiences that had disappointments were due to the way others failed, not really yourself. Your advice to that other individual about how they were taking things in the wrong direction was right, you got to see the result take place that you had warned about happening. So, this was not "your failure" but instead this other person failed.

Remember to recognize the positives where you were actually right in the challenge and it was the other person who "failed" to listen and ended up with the true loss. The business world can be cold, and a lot of people have to find a way to work around that unpleasant reality.