You wake up and do the best you can every single day. Everyone caves into temptation or does things which are counterproductive from time to time. Just remember Ecclesiastes 7:20 (KJV)
"For there is not a just man upon earth, that doeth good, and sinneth not."
(Every "saint" has a past and every "sinner" has a future!)
"Worry does not empty tomorrow of its sorrow. It empties today of its strength." - Corrie Ten Boom