You can never truly change who you are, you can only change what you focus on, a somewhat controversial thought.
If you learn something new or change career or change your attitude or beliefs towards something then aren’t you changing? No, that part of you has emerged; it was always there, dormant, just waiting to be awoken.
Stop trying to change the person you are and only change that which you wish to see around you by changing what you focus on.
A simple way to do this is to saturate yourself by the things that you choose to emerge from yourself.
I know many people will disagree with this statement but I’ve been a firm believer from a very young age, that I, as a human being, have the potential to do or be anything! The me, the spirit, the soul, will always remain the same, but will only be exploring only a few parts of my eternal unlimited self at any one time.