Every one has stress its how you manage it is what's important. 

I learned not to bring up past events to a situation that is current, I learned that not everyone enjoys being praised especially in front of a group setting. I believe they should still be praised but when they are on a one to one setting where they will feel more comfortable. 

I learned that everyone should share their own ides even though it may be different from yours and something that you may not agree with.