The outcome of most games of chance, particularly lotteries and slot machines, is completely random: You cannot influence it, regardless of what you do. For lotteries, this means that betting the same numbers every week won't help you win any more than betting different numbers will. The odds of winning Lotto 6/49, for example, are 1 in 14 million each and every time you play: It doesn’t matter how many people have purchased tickets or what numbers you play—the odds are the same, regardless.
Whether or not you win playing slot machines is based solely on the randomly drawn numbers generated by the machine’s computer—numbers which determine the game’s outcome even before the reels stop. Pressing the stop button may speed up when you find out what the game’s outcome is, but it won’t influence what that outcome is in any way.