How do you sell yourself so that you are the best candidate for a given role?

Probably start with
Rest would fall in place.

I think it’s important to research a little bit about whatever you’re applying for so that way however you describe yourself is within a meaningful context to the person learning about you. (Learn about the organization, learn about the position you’re applying for)

Tell me about yourself:"I tend to be a perfectionist. I have a clinical diagnosis of a slight case of OCD so I can't help but be overly organized."