TL;DR: Your idea of “self” is more fluid than you might think, a concept from Buddhism that’s supported by scientific evidence.
“self-processing in the brain is not instantiated in a particular region or network, but rather extends to a broad range of fluctuating neural processes that do not appear to be self specific”
Source: Neuroscience backs up the Buddhist belief that “the self” isn’t constant, but ever-changing – Quartz