Just had my first interview...oy

I'm a new grad and had my first interview today! The position is for a telehealth intake nurse at Health and Hospitals Corp in NYC. I was ready with lots of interesting questions and I think I did a good job answering the questions I was given. The recruiter was visibly pleased and surprised with many of my answers! I forgot to ask some of the questions on my list (like asking the recruiter how they liked their job? Blah blah) I was taken on a tour of the office and introduced to people (good sign, right?) They said they would be interviewing for another 2 weeks and that I would hear back from them at that time (Boo-hoo, I was hoping they would love me so much I'd get hired on the spot!:) I am so nervous! I am a single mother of three girls and was laid-off from my position as office manager after my company went under late last year. I've run out of savings and my unemployment check barely covers rent! I need this job! I barely have enough money to continue printing my resume! Good paper ain't cheap! Does this sound promising? What should I say on the thank you note??

Thanks fellow nursemates:)