Hell, when I began playing Minecraft for the first time, (I had already seen many, many Youtubers play the game, so I had no trouble with walking around or braking and placing things, ETC. Sorry :P) I was so paranoid of dying for some reason. And only about a month after I got the game did I begin playing in something other than Creative! And only recently began actually playing in something other than Peaceful :P.
I remember the first time I had ever actually played the game, I was building my house when nightfall came. I hadn't yet found any sheep, so I had no way to make a bed for myself. So, I built a 2x1 wall of dirt in the corner, thus spending the entire night there instead of actually fighting any mobs. After that, I built myself a sword, but still lived a sheltered Minecraft life, by not going out of sight of my house, and rushing home as soon as the sun was near setting. XD