As we grow, we change many things about ourselves. Some are superficial, such as trying out a new hairstyle, experimenting with makeup, buying a completely new style of clothing.
Other changes are more serious, such as transferring from one college to another in order to switch majors, moving out of the family home, getting engaged, and finding the first full time job.
Your task is to write a story in which your character is faced with her first major life decision, one that will lead to a huge change in their life.
A lot depends upon the age of your protagonist. For example, a senior in high school is choosing between colleges or trade schools. During college, she might change majors once she realizes job employment possibilities are limited.
Adults get married, separated, divorced. Switch jobs in order to climb the professional ladder.
Some changes work out well, but many do not.
Have fun with this one.