Your "self" isn't immutable. You aren't "a certain type of person". You are an evolving experiment. One that is certainly affected by the observer, and one whose outcome is affected by the inputs. If you want to carry something different in your heart, you can do that. You just have to want it bad enough that you can let go of the person you have been.
Your path is your path
And while it may be informed by the good and bad choices of all those who came before you, you (and you only) bear responsibility for your path.
And so own it, make peace with it, rip the band-aids off, look your weaknesses and shortcomings in the eye and just keep growing.