a trial doesn't prove anything. Have you ever not had a problem in a certain situation and then started having trouble there? Changing your name in a few spots as a test is completely different from that being your identity and using it in that capacity. If anything, this is a novelty effect. Im not trying to be a downer, but you have a hard time on your name not because of the sounds, but because names are hard for everyone....because they're important...and because everyone can say their own name, so the pressure is huge. Changing your name won't do anything to change that pressure once things slip a few times and it'll be like before.