It's good to make a career out of one's passion.
Lana is in university and finds she has different interest levels for different clases.
Lana wants to choose a major that will lead to a career.
Lana chooses a major that will lead to a career she his very interested in.
Lana chooses a major that will lead to a career she is mildly interested in.
Lana will become excited by her career and have many achievements.
Lana will become bored of her career and perform poorly.