Video Poker play is relatively straight forward. The play of the game has similarities to other casino games, but it is definitely more complex than playing slot machines. To properly play a slot machine, you simply bet an appropriate amount to maximize your return from the game and either pull the handle or hit a spin button. There is nothing else to so. While it may be true that some slot machines have a button to immediately stop the spinning and go to the final result, pressing this button does not change the outcome; it only helps you lose your money a bit faster.
Video poker is a very volatile game, about four times as much as blackjack. In any form of gambling, short-term results mostly depend on normal mathematical randomness (what some might call luck). However, in the long run, results mostly depend on skill. If you play a game with a return of 100.76% perfectly, that does not mean that you will have a 0.76% profit every time you play. The 100.76% is an EXPECTED return. Much in the same way, if you flip a coin ten million times, the expected number of tails will be five million, but it is unlikely you will hit five million on the nose. Actual results will vary significantly from expectations, but the more you play, the closer your actual return percentage will get to the expected return.