Good for you for going. Even if it felt like you were stumbling, it's hard to actually know how we sound when we're stressed and in an interview. Sometimes, you think you sound like you don't know what you're talking about - but they love you. Other times, you think you nailed it - but don't get the job.

There's so much weirdness that goes into getting a job that honestly, if you don't get it, you shouldn't really blame yourself. For awhile I was helping my boss interview candidates at our work place. We had people that we loved, but couldn't hire b/c their skills weren't the right niche for what we do. We had people that were very qualified, but showed some personality characteristics that would likely not have fit well with our team. We had people who looked great on paper, but were terrible in person. It runs the gamut, but not getting the job doesn't always mean that there's anything *wrong* with the person.

Good luck to you, and I think it's smart to keep interviewing while you wait to hear back!