The house always wins because even if a player wins one or two games he will be losing in other games. The fact that lower odds are provided or a team is tip to win doesn't mean you will win.
If you want to have a decent chance in gambling, choose a game where there is no house advantage.
Good example is sports betting, there is a juice but you can increase your odds to receive equal of your bet or even higher.
When you play a game that has a house edge, just do it for fun as you have no chance to win in the long run.
And aside from that, when you play sports betting make it sure that you really understand the game you can have some advantages when you are fully equipped from each games that you've bet, keep in mind to play only to have some fun and enjoy the sports that you've love don't play to become greedy and to be too much engage, gambling house always have their respective advantages against the gambler.