person A: I'm going for an interview for a job on Monday and am feeling nauseated when I think about it.
person B: Hey_comma_ I bet you'll do great! Nothing to stress about. 
person A: I just really want this job more than any others and its hard to get in.  I'll be crushed if I don't get it.
person B: Just try to stay positive and get a good night's rest the night before and I'm sure you'll do amazing! Just have to go in with confidence.