If that's how life worked I would have been where I wanted ages ago but I'm still here XD
On a vaguely related tangent did I already tell you about my musings about whether you were all the same people if I knowingly switch realities and if I switch realities do I replace the me that was in that reality or did that me just stop existing because I replaced them or do we just co-exist because it was me all along?

you are still here!!!
I don’t think that’s all there is to it but I think it’s a huge part of the equation.
I guess we are probably constantly meeting different versions of the same people but they are close enough that we don’t usually notice what’s going on other than the parts that can be explained physical tangible explanations.
And I guess there is probably a server with all versions of you on it, so if I interact with this version or that version, it all uploads and downloads to the same server.
I like to envision us like balls of light illuminated a map in the dark. The map is all possibilities in existence, and the territory next to us is all the possibilities that are immediate to this moment.
Not sure I illustrates that well but when I saw the end of Intersteller I was like “That! That’s the map!!”
Instancing would explain some of the nonsense that's going on in my head. But still doesn't tell me whether you're "you", I'm "me" and what happens to "me" if I switch realities XD Or if all of us are discrete personalities as I would feel really bad if I did actually replace the "me" that was in whatever reality I barged into, and then wonder if I would notice if some other "me" collided/merged with me and I stopped existing, no one else would notice because the other "me" is there O_O
I am reasonably certain I know what you're talking about, I usually try and navigate by trying to do the things that would make that particular reality happen/get into that particular reality (I don't know how to describe following the path through, except to say that I can see a path most of the time), and end up clashing with anyone who is trying to make a different one (intentionally or otherwise). So far in my entire life you're the second other person that knows/has figured out how to navigate XD I do know a bunch that kind of understand the theory but they don't really know how to navigate or don't think it can be done.