If Everett is right then doesn't that mean that one of him also, say, choked to death on his acceptance letter? I like the idea of immortality (no matter what

If Everett is right then doesn't that mean that one of him also, say, choked to death on his acceptance letter? I like the idea of immortality (no matter what happens, I'll always wake up OK in some branch, and that is me), but I'm not sure it actually helps otherwise, day-to-day. In fact, I'd guess there's more potentially bad universes so it seems rather much of a downer in that sense.