Is it normal to have different mindsets?

I've lived my life with supposedly strong morals. For instance, there was a situation a little while back where I made it my own personal mission to get a pedophile arrested. Somehow I was the only person to seek helps about the situation.

Thing is, the more I think about it, I don't think I was feeling a need for justice. I think I was angry at him for being like me.

I'm not a pedophile at all- I'm still just a kid. What I mean is, he ruins lives. He manipulates people till they're empty husks willing to do anything he says.

On a day to day basis, I feel nothing for no one. All I feel is anger when things don't go my way, and boredom toward everyone around me. That includes folks I care about. The only time I ever really Feel anything is when I'm manipulating and hurting people.

Now, I'll say that, but then all that fades away when I do something else. At that point I think, "what was all that about?", and continue to keep helping others.

I'm the person my friends rely on for emotional support, and yet I want to destroy them emotionally and physically half the time.

Is it Normal to have clashing mindsets? Which one is the real me?