you don't need a character or have to pick an animal to be a furry.
if you are set on finding a fursona you might want to try checking out a big book of animals and thinking about various animals personalities. going through the book you might find something that clicks with you. if you do find a fursona you like you don't have to stick with it forever. i have found different animals to represent me over the years. i am a different person now than i was 5 years ago so to some extent it makes sense for my fursona to change as well. when you find something thats right you will know it.