Even the best poker players have their bad gaming sessions from time to time. As they say, it happens to the best. Therefore, to expect that you always are going to win is a huge mistake and pretty naive. Your goal should be to show the best of your capabilities in each gaming session, in each hand. If you do this, improving your habits and skills, the good hands as well as the victory will find their way to you.
Many players make the mistake to evaluate their skills based on the results of each gaming session. Your goal should be to use the maximum capacity in every game and every time. And the closer you come to this, the better the results will be.