Do not hold "D" while picking locks; instead, tap it fast to advance. If you see the lockpick slightly moving, stop and change lockpick positions. Start from the left or right, and when the lockpick is about to brake (it will twitch), stop and try again after you moved him for 1/4 of a scale. This trick requires some practice, but once you master it, you will not need to spend attribute points on lockpicking.