I can't remember who first said it, but
"I don't want to achieve immortality through my work. I want to achieve immortality by not dying."

If it helps you to sleep better or gives you comfort to imagine that "you" as an individual will transcend your own death, that's great. It hasn't got anything to do with science. It's not a scientific opinion - it's not even scientifically relevant.

But I wish you happiness, the same as I wish for everyone else and if that's what it takes, then great.