It's good to know that you've been here for a long time with a different username though. I also once used a different username back then in 2018 when I started my Hive journey. I wanted to change the username but that couldn't be possible.
When fate had Its way, the phone I used back then broke down and I lost everything I had then... Had to create a new account months later when I got a new device.
Your new username is easy, simple and better off. Welcome back.