面具伴我多年
[miàn jù bàn wŏ duō nián]
The Mask Accompanies Me For Years. A mask can conceal one's real identity while protecting oneself from being easily hurt or revealing inner thoughts too openly. So using 'years' shows this persona is maintained not casually, perhaps representing a defensive attitude, social barriers, complex personality traits or a long-held habit towards life and society over time.