I know folks here are talking about the data (and that is important) that said, isn't "the data" a culmination of everything in the channel, mostly videos, titles, descriptions, seo etc. I'm wondering how exactly you can attribute data towards a name change, and not just attribute it towards the video performance it'self.
I think it's a personal thing really.
What did "Racoon's corner" mean to you? Why did you call yourself Racoon? was it a nickname you or a friend gave yourself? "Racoon's corner" could mean it's a channel about Racoons, but because of the 's I assume it's a nickname.
ThatTommy I assume it to do with your name being Tommy?
The next question you need to ask yourself is do you think you're going to want to be known as Racoon, or as Tommy?
JackSepticEye still goes by Jack or JackSepticEye despite the fact his name is Sean.
PewDiePie still goes by PewDiePie as a brand name, but most people refer to him as Felix as that's his name and he doesn't even refer to himself as PewDiePie anymore.
I don't like my "real" name being used, I prefer my nickname, so that's why I stuck with my nickname for my channel. If I were to make a channel as myself as a designer, I might go with my real name, like Will Patterson does with his design channel, or I could go with a brand name like TheFutur does.
Lots of artists go either with brand names, or their actual given name, so at the end of the day I think it depends on what you want to be known as in 10 years time. Do you always want to be known as Racoon's corner? Or would you rather people call you by your name? I think both are equally valid, and at the end of the day, I don't think data has as much to do with channel names as personal preference. I guess you could always ask your community what they prefer because a new viewer isn't going to care either way as long as the CONTENT is good. Your brand name is simply going to be what they remember AFTER the video leaves an impact on them.
Those are my thoughts.