You don’t have to bet on all the games mate. You need to only bet on the games which you think has less risk and more chances of winning. At the end of the day, you are beating through your hard-earned money. Hence you need to be very careful while choosing the games to bet on. It’s always beneficial to bet on the games where your favourite team is playing, as then you will know the strength and weaknesses of your favourite team, and bet accordingly. People do betting in order to earn some “extra” cash. So there is no need to bet on each and every games.