When I first became a leader 3 years ago (age 30 now) I probably went through many of these mistakes. My biggest challenge was trying to please all my employees only to realize that wasn't going to happen. Each of their personalities were so unique and there was no one size fits all in this union environment. But I also had to learn how to delegate because I always thought it was easier if I just did it myself, and by delegating I was able to get my team more involved in the business decisions and increase overall morale in our workgroup. Being a new leader can be tough, but it's through all these trials that we learn so much.