I’m a little confused on the fact of me being otherkin and fickin, but I know I’m human? I’ve been told that’s called otherhearted, but like, I know I’m human, bit I also believe I’m a character or a certain creature or animal and I’m just confused.

Here’s difference..

If you “know you’re human” as in, believe that you are physically inhabiting a human body right now, but  you firmly believe that you are spiritually or mentally non-human in a way that you can not control: then you are otherkin.

If you  “know you’re human” as in believe that you have a  human soul and mind, but have taken on the role, identity, persona or mannerisms of a non-human deliberately for any reason, or simply feel an emotional bond with a non-human: then you are otherhearted.

(for fictionkin/fiction-hearted, replace “a non-human” with “a character”. )