It's about worrying that decisions you've made in the past, decisions that decide who you become and what kind of identity you forge, might have been wrong, and obsession with how things might have turned out if things were different.
Inability to get over the past, and paranioa that people are constantly shape shifting and judging your every move, so you have to keep up with the deception. Along the way, maybe the narrator risks losing a part of himself.
It's about worrying that decisions you've made in the past, decisions that decide who you become and what kind of identity you forge, might have been wrong, and obsession with how things might have turned out if things were different.
Inability to get over the past, and paranioa that people are constantly shape shifting and judging your every move, so you have to keep up with the deception. Along the way, maybe the narrator risks losing a part of himself.