Also: Let tomorrow worry about it's own things.
Tomorrow is another day.
Cross that bridge when you come to it.
Live for today, for tomorrow never comes.
Worrying never did anyone any good.
Matthew 6:34
Take therefore no thought for the morrow: for the morrow shall take thought for the things of itself. Sufficient unto the day is the evil thereof.
Matthew 10:19
But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak.