I suspect that you get "an uneasy feeling" during critical phases of flight as a direct result of reading this forum.
Rainboe is right mathematically, that flying is statistically safer than other modes of transport. This isn't going to stop you from worrying because, unlike rainboe, you don't know how it all works, you don't have all the fact, you don't know how to fly, you're not sure if when you look out of the window there should be flaps out at this altitude, is that the AT or is it the PF modifying the thrust? if that wing moves much more, surely it'll fall off.....
But because you come here and read about all this, the mistakes, the arguments, the stress, the mindblowing technical knowledge and skill required to fly such machines, I'm not surprised that you start to ask questions.
PPRuNe is not for the faint hearted!