Description: A giant snake lady sits in a lake. A man stands next to the edge of the lake and asks, "O snake of the lake, what is your wisdom?"
The snake replies, "Osamu Tezuka, the inventory of manga and anime, created old-school furry icons like Kimba and Bagi and had a secret collection of erotic furry art that he made which was only found after his death; so weebs are really just a human-focused offshoot of furries.
Furries are centered around anthropomorphic animals. Anthropomorphic means it has human traits. Humans are an animal species. Humans have human traits by definition, therefore humans are technically anthropomorphic animals, therefore all art of humans is technically a subset of furry art.
So having an alter ego would be a fursona?
Your main ego is a fursona!
But that's not what I meant when I said I wanted to become my fursona D:
Myers-Briggs Fursonality Test
Basically the same, but now it also tells you what animal species you relate to.