This can't be classified, it depends on personal character. If that girl is very active and likes fighting, it can't be because she is a sophomore. And you can't think that the other person is innocent just because they fight and make trouble (because you don't have deep contact with her and don't know her, and some people may not be true, so you need to get in-depth contact and fully understand before defining a person, otherwise it will be arbitrary. For example, if you see a girl fighting in physical education class, she thinks she is innocent, but I think she may be a showgirl, who is not confident or vulgar and doesn't pay attention to image.
No matter who will have a vision for the future, not everyone's expectations can coincide with reality, and expectations are generally higher than reality. But after all, my sophomore year is one year older and my thoughts are more mature. Just like your idea of senior one and senior two must have changed, maybe what you thought was right last year will feel so naive when you look back the next year.
The dull girls you saw in the second year of high school are only a part, but you didn't find those lively and active.