"One of the things I learned the hard way was that it doesn' t pay to get discouraged. Keeping busy and making optimism a way of life can restore your faith in yourself"

The quote means that the speaker, Lucille Ball, picked up from individual experience that sensation prevented as well as giving up does not bring about success. Instead, she thinks that remaining occupied and also selecting to have a favorable perspective can improve confidence as well as assistance people conquer challenges.