Life is defined in Sanskrit as anubhava dara, meaning a stream of experiences. Experiences flowing in uninterrupted stream are life as the water continuously flowing is a river. When spirit (you) comes in contact with the matter, experience is created. If those experiences are happy, your life is happy. If they are sad your life is sad, if they are dynamic your life is dynamic.
Experience is a unit of life. Not all experiences are pleasurable, but sometimes we learn the biggest lessons in life from those unpleasant ones. Whatever happens, doesn’t matter how bad, ask yourself what did you learn from it. There are no failures in life, just lessons. If you fall, never mind. Stand up again. You don’t lose when you fall, you lose when you quit trying.