"Too kindhearted"

It was maybe what I really didn't want to hear. Talking to an experienced lady who knows a lot about our organization, she pointed out that I was too kind to my staff and it is important that I become more strict.
I'm not that kind of person to be easily angered and say hard things to anyone as that's just my characteristic. I always think someone who easily gets angry is someone who is weak and someone who is hard on people is someone who doesn't know about himself and could be ignored unless he is the almighty God who I also believe would be a kindhearted existence.
But maybe I'm wrong. I'm probably scared to be loathed and I always try to avoid quarrels. Maybe I just want to look good and be seen as a nice guy. It's true that a manager can't be such a kindhearted which could in a bad way look weak and I must become a strict leader in many occasions especially when we have such a heavy load of work like now.
All I could do is curse the people who put me in this position and though it was my priority in life to avoid being promoted to be in that state, how could I have guessed that I would be in this kind of managing position so early in my life!? Sadly I don't have any charisma to get through without changing my character.
This stress will continue for a while and I'm sure my hair will become all white when I finish this position and that would make me look even more kindhearted!


PS

having some fish for lunch... not bad once in a while!
especially with some soy sauce!