Panicked

I had an interview for a junior accounting role, I’m fresh out of college so getting a job is almost impossible right now. However, this interview went really well. I answered everything and aced their technical test. As the interview went on for quite a long time (about 50-55 minutes) I got incredibly tired at the end, and for some stupid reason forgot to shake one of the interviewer’s (they were 2) hand despite her actually extending it out. In my defense this happened because the other interviewer said something and walked me out the door, but I blew it didn’t I? UPDATE:I GOT THE FUCKING JOB!