It will happen to you one day and when it does don’t be embarrassed, it happens to all gamers. I’m talking about cold dice. Eventually the dice run cold for all of us. Maybe the d6 keeps coming up 1, the d12 won’t roll higher than 3 or the d20 isn’t cooperating at all and you haven’t hit a monster all fight. Eventually the dice gods will correct the problems and balance the scales, but until then a streak of poor rolls can crush even the most experienced player.
When a player goes through a bought of bad dice karma it can actually have a detrimental effect on the entire group. Even though everyone else rolls as expected and has fun doing so, one player’s poor rolls can effect the overall mood of the entire table. I’ve learned over the years that when this happens (and it will, if it hasn’t already) players and DMs can actually do a lot of things to turn the tide.