Congrats on having the fortitude to think it over long and hard and get it done!
My aunt changed her name shortly after me and my cousin became adults. They of course all call her by her new name, but I never have. Just can't do it. 20+ years of calling your aunt "Sharon" and then knowing she is now an "Alexandra"? I also know she really didn't give it much thought, it was just a reaction to hating her father
I have been doing Genealogy work the last year, and found out my first ancestor to hit America 9 generations ago changed his last name right off the boat, that very day. From the day I learned that, I wondered what it would be like to change it back