I had a couple of early hours flights where I was quite nervous - even though I was up with instructor. They passed.
Now i've got GFT and am doing IMC, I still get nervous about the thought of going up solo. Comfort level usually returns at around brakes-off time (thankfully!).
And we all have bad days - had one this weekend when I went up in what was suppsed to be 6kms vis and had to turn back after 10 mins when it became (un)clear that nav wasn't going to be possible. Didn't even see field again until overhead and then made the worst join/circuit of my career. I'm trusting that the next flight will be a blinder!
Hersh