That's going to a pretty great length to avoid stuttering. You really should try to be more comfortable with your own stutter (I know that's not something you can just snap your fingers and do, it does take time) and try to be more open about telling people you stutter rather than changing your own name. It feels good to tell people about it, and you can even joke about it a bit and people will be less awkward around you. Trust me it's worth it.