Becoming a brain surgeon in BitLife is a complex process, but with the right strategy, it's achievable.
You need to prioritize your character's intelligence, starting with high grades in school and continuing through university with a focus on science subjects.
After completing medical school, gaining experience in the medical field is crucial before applying for the brain surgeon position.
Persistence is key, as the brain surgeon job may not be available immediately, but keep trying and eventually you'll get there.