history: I'm anxious for my upcoming job interview. I hope I do well and get the job. I'm really anxious for my upcoming job interview. Thats understandable! Just be yourself and Im sure you will do great!
current: Thanks, I'm going to try to do my best. I really want this job!
next: A tip someone gave me once is to make sure to have really good posture as it makes you appear less nervous! Fake it till you make it! Good luck!