To answer the OP: going through initial type-rating (in the sim), I went from overwhelmed, slightly confident, via down again, to cocky. Unfortunately, the cocky "let's git'er done" feeling on the flight before the skill test resulted in shutting down both engines after an engine fire - the right one with condition lever and the left one with the firewall valve. We had been joking about it beforehand, that you'ld have to be pretty thick to pull a stunt like that, that it was just a matter of paying attention.
Let me tell you, that the ear-defening silence of two stopped engines, just above 1000', in solid IMC, taught me one thing and one thing only: sit on your f-ing hands until your head is cool!
You are never that short of time, that you don't have time to do things right.