Shalom ~Hanna~,
It is great that you are discovering the wonderful world of our Torah and how it reflects and projects our inner souls into the real world. As it is said by many of our sages, the events of the Torah contain many levels of understanding and each level reveals differently to each of us our inner strengths.
Josephs struggle with his brothers is a story which plays out in various ways in our lives.
I must clearly say I DO NOT AGREE with the girl who narrated that video. Joseph was a Tzadik, and what he did was because it had to be done. He was not a 'jerk' as she intimates. He did what he did because he wanted to make sure that 'measure for measure' they repented for the evil which they did. While Joseph did 'ootz' them he did not truly deserve the death which the brothers judged unfairly for him. I find it wrong to raise ourselves to the same level as these tzadikim even if we acknowledge that they were not perfect. Judaism has no perfect characters and that is our strength as we do not expect our righteous ones to be only good (as the Talmud teaches).