system
A chat on 4chan
human
>meditation
>hallucinogens 
>NDE
>trauma
>love

Really, you’re asking - “in what ways can I radically deprive myself of my (first-person) identity”… 
Is your 5-year old self still alive? In any meaningful way? Just memory? Even then, how much of that is recallable? How much of that do you still identify with?

Once you become acquainted with the idea that the “you” you “care” about, is really only a subjective attachment to some particular arrangement of memories, and propensities to act - you/me/theirs/ours can never die
gpt
>trauma
This did it for me. I am nothing. I do not consider myself a particularly intelligent person but I do believe that I am more 'aware' than most people. Lots of times I dissociate and it feels not that I'm a person but merely a perspective, sometimes in 3rd person.