A lot of us tend to get nervous when starting a new job or anything in that nature. I guess you're asking how does one become more award of God's comfort and strength when you especially need it.
My answer won't be so popular since I'm possibly the lone Catholic around here, but I always keep a rosary in my pocket. When I'm thankful, when I'm nervous of something, when I'm anxious, etc. etc, I grab hold of it and persistently pray. And if I'm in a position where I can, I will pray the rosary.
I accept that you're not Catholic (unless you are), but one thing that we Catholics and Protestants absolutely agree with is the help we receive from God when we pray. Perhaps get something to keep with you at all times like a cross or some sort of bracelet that you can hold onto and/or look at when you feel you need to especially feel God's presence.