Chiomara

..Excluding teenage phases, unless they were really notable. Please do include dress-related phases, too. (For instance, long long ago I used to be That Person who only wore wolf and wildlife conservation t-shirts with ill-fitting mom jeans and birkenstocks-- or combat boots with a knife sheath attached because I obviously needed a knife while roaming my safe suburban town. This phase came directly after the one where I dressed like Charlie Chaplin 24/7 and seriously considered joining a traveling carnival.)

10+ years of clinical depression also resulted in very interesting and embarrassing phases (see above), but I couldn't possibly choose the winner among those just yet.

Edit: I only just now realized I typed "was was" in the title. Oops. Must have been short-circuiting.