And so the girl represents a part of himself that he has to push away if he is going to be fierce.

解答如下：

你的理解是正确的，应该还改为herself 。主语和宾语属于同一个人，宾语必须用反身代词。

例如：

She can take good care of herself.

She enjoyed herself at the party last night.

Tom is too young to dress himself.

She can't make herself understood.