Try not to worry too much about "losing" your identity. While you may shed layers of your former self, you are creating a new existence. Adapting to your new life can be lonely in the early months, but know that nothing is forever. Your old self might rest dormant for a while, but it will burst into new life, as you become a more evolved version of yourself.
In August 2011, I was trying on a dress in a Brooklyn boutique when my phone buzzed to notify me that my mom had emailed. Expecting the usual check-in -- how was my weekend going, and here's a photo of the new puppy -- I instead read: "I am attaching a copy of a letter I have written to Mayor Cory Booker suggesting that he meet Adina.*"