You can't create a new Apple ID of your own and change it to your current Apple ID. Apple IDs can't be merged. You can change the email address of your current Apple ID without losing any data. Note the restrictions in the article.
Apple ID Name Change. *
Make sure you turn off Find My Phone before signing out of the old ID. Once signed out and Find My Phone is off, then sign in with the new ID, then turn Find My Phone back on.
What to do after you change your Apple ID or password - Apple Support * I suggest doing this before you change your Apple ID or password.