Nami — what did Nami do at each age?

ナミ | Manga Character

Timeline

Age 18: Joined Straw Hat Pirates
Age 18 (2016): Officially joined the Straw Hat Pirates after defeating Arlong
Age 19: Learned weather manipulation
Age 20: Got Clima-Tact
Age 20 (2018): Acquired Zeus from Big Mom as her weapon
Age 22: Became skilled navigator