“I would be happy to talk further about my writing and editing skills and how it translates into copywriting.”
Unfortunately, you’re fired.
The word it refers to my writing and editing skills.
I would say the phrase writing and editing skills is a plural.
So actually, if we want to talk further, we want to talk about how they translate into copywriting. Not it. They.
You might stretch and insist that the phrase my writing and editing skills is singular — a single thing, like macaroni and cheese — but I would disagree.
So yeah, you’re fired.
English Is A Complicated Language 