I want to be a scientist/mathematician but with the job market the way it is, it probably won't happen, so:
Realistic Point of View:
A: I'm an unemployed PhD in Chemistry, Physics, or Math. I get a cat but I'm so poor that I can't afford to take care of it and have to give my beloved pet away to an animal shelter, hoping a loving family with money adopts it.
B: I'm a medical doctor with no passion for my job and only a cat to keep me company.
In both scenarios: I'm at the wedding of my sister (a doctor). She looks so beautiful, especially with her groom. I see my parents. My mother cries tears of joy. I see my brother, a successful lawyer, with his loving wife, who is holding a cute, little baby. I sit by myself, forever alone.
Pessimistic: I finally fall in love, but I get rejected. I get murdered brutally. Other than my family, no one comes to my funeral.
Optimistic: Um... I... don't fail?
Ridiculously Optimistic: I win the Nobel Prize in Physics and Chemistry. I have a loving husband (but no children; I don't want any) and a healthy cat. I'm rich, but I donate most of my money to charity.