Worry is a sticky thought––once touched it is hard to brush it away.
The flowers of the field remind us there is a way to take care of worry:
“And why do you worry about clothes? See how the lilies of the field grow. They do not labor or spin. Yet I tell you that not even Solomon in all his splendor was dressed like one of these…seek first his kingdom and his righteousness, and all these things will be given to you as well. Therefore do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own.” Matthew 6:28-34
To get rid of worry for tomorrow requires actively pursuing the Kingdom of Jesus today (letting Him forgive past wrongs and rule in every area). Then humbly walk with God allowing the Holy Spirit’s help you make right choices. If you mess up, or another worry pops up start again with step one. Worry itself is not a sin, but it is the temptation to take your eyes off of Jesus.