I just wanted to say I've had awful interviews too!

It happens to people sometimes that you'll have an interview that you're excited about and it will go badly. Or you're hoping the interview goes well, but sometimes it will happen that the interview does not go as planned. But the interview, even if you're excited about it, can go badly.

That's not a faillure on your part. Just know that it happens a lot and it has happened to me before when I've wanted an interview to go well, and it goes terribly!

You can just say, hey, you know, I have more exprerience now in interviewing. View it as a positive thing because now you have more interview experience!