The only thing that is constant is change. Every version of you to exist will still be you but they won’t. It can range from being born 0.00001 seconds late and that’s to only difference to they hate everything you love. When multiverses exist everything is probable so everything is the truth but is also a lie. But the most important thing is not to focus on what you could be or want to be but to focus on you in the now and accept yourself.
(Sorry for getting philosophical lol)