changed mine even after having kengo for a few months just because it felt better :-) i was able to make a redirect from my old site to my new one, so maybe you could claim the same URL and do that......
such a cool site, your homepage is SO stylish and nostalgic, i don't have much time to explore rn but your resources page in particular seems like a real goldmine 〜(> <)〜
i'm not against it but ultimately its up to you... follow ur HEART! ヾ(  ̄O ̄)ツ
I'm never able to keep up with people's sites after they change their url.
changed mine even after having kengo for a few months just because it felt better :-) i was able to make a redirect from my old site to my new one, so maybe you could claim the same URL and do that......