I lied about my qualification?

I lied about my qualification in an interview a few days after they asked me to send proof but i didn't have any so i told the truth. I did not necessarily say i lied, i said there was a misunderstanding. I was feeling intimidated and i thought they wouldn't contact me after the interview, turns out i was wrong. Now i feel scared of her reply. I have been out of work for 4 years now, this job would have been amazing had i not lied. I regret lying so much, its killing me. What do you think will happen now, what would you do as the Hr?

I lied about my qualification?
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