So you’ll need to send the DS-160 confirmation letter to their email at USAKZ@state.gov, after which you’ll need to wait for them to send you an email allowing you to schedule your interview. They might take a while to respond so you’ll just have to keep waiting, hopefully now they reply faster.
They sent instructions on what to bring to the interview to my email. If you want, send me a PM and i can send you what they sent me last year.