Genesis 26:2 KJV — And the LORD appeared unto him, and said, Go not down into Egypt; dwell in the land which I shall tell thee of:
God told Isaac not to go down into Egypt. He told Isaac not to follow the traditions of his father Abraham or the wisdom of the world. And God did this during a time of famine.
God is no respector of persons.
So if He gave specific financial instruction to Isaac during a famine, much more will He do the same for you.