I can remember being a young 135 freighter dog and getting to work at about 8:30 at night. It was very windy and raining like crazy, rows of airplanes straining against their tiedown ropes. There was about 2000lb of soaking wet cargo on the ground, next to the Piper Chieftain I was to fly. My boss must have seen the look of anxiety on my face, and then said "Well, get on with it - throw that **** in the airplane and get outa here." Ten minutes after I was airborne I was finally able to relax a little. The first year of night freight was a steep learning curve. What to be afraid of, what to never do again. How heavy can I fly this thing, and how to recognize a loaded airplane that's too aft CG. Iciing, yikes! How to keep charts organized, and what to do when you're halfway through your descent, screaming along at 180kts, (doesn't seem so fast, now) in the middle of stage-cooling, and they change runways...to an approach you've never done, a kinky one, with back-course localizer to mins...well, you get the idea. It was about survival. I don't think that is what the OP had in mind with regards her instrument rating.