In Clash Royale, you can use a variety of different strategies to win the game. The more you play the game, the more you will learn. The best strategy is to be able to use the cards that are best suited for the battle, but you have to take care of your health and stamina. You may be tired at the end of the game, but this doesn't mean that you should stop playing. You can always just rest for a few minutes. You need to find a balance between rest and play.