Chess is a strategically deep and richly complex game of vast possibilities, and at first the great amount of knowledge that seems to be required just to stay on the board seems daunting. However, the good news is that you don't need to know everything - you only need to know more than your next opponent!
According to an old chess proverb of unknown providence, "Chess is a sea in which a gnat may drink and an elephant may bathe". Even a little knowledge of chess strategy can greatly increase your enjoyment of the game, even if you don't aspire to become a chess elephant.