>>What I might try doing is a character form thing that I found. The only problem is, getting myself to actually do it.<<

You could try answering questions and posting them one at a time. Breaking it into small parts might make it less of a chore.

>>The only problem is there are a lot of things that confuse me on character development forms.<<

I can think of two different approaches to that. First, you could look at very short forms, which tend to have simpler questions:
http://www.writersdigest.com/writing-articles/by-writing-goal/improve-my-writing/9-questions-to-ask-your-main-character
http://elspeth-itsamystery.blogspot.com/2010/09/10-questions-to-ask-your-characters.html
http://fictionwriting.about.com/od/crafttechnique/tp/createcharacter.htm

Second, you could look at very long forms, and pick out 5-10 questions that do make sense to you:
http://www.gather.com/viewArticle.action?articleId=281474976908598
http://dreadpiraterose.wordpress.com/2009/12/30/100-questions-to-ask-about-your-role-playing-character/
http://dungeonsmaster.com/2010/11/27-questions/

>>Also, she has a big obsession with animals and knows quite a bit about them.<<

Okay, that's really useful. You could write about how she notices animals first when walking into a room, or maybe she prefers the company of pets to people, and she might like reading books full of animal facts. Most folks like animals, so this will help in understanding the character; but they will express it differently, so her expressions will help in understanding autism.

>>For me it's anime, paranormal or pokemon. It always has been.<<

Well, there's another idea for a positive autistic character: the paranormal expert whom people ignore until their nice normal life blows up in their face and they come begging for help. Which is not all that fictional, really.