...does your type become more prominent?

I ask this based on my own experience. In my freshman year of high school, I sat at a lunch table with three or four other people. We would all bully one kid who had a speech impediment, and for some reason I went along with it. I guess I figured it was all in good fun since he wasn't leaving the table.

But near the end of the year, I realized that what I was doing was completely dumb and wrong. I don't want anyone to think of me as a mean person. Does this have anything to do with my type, or is it completely separate, like a change in religion? The thing is, I haven't always thought this way. It's only now that I have really been trying to be the best person I can be.