God told Abram to go, to leave all that was comfortable and secure. He was told to leave his country, his people, and even his father’s household, and was not even told where he was going. God simply said to go to the land that he will show him.
God didn’t layout a 12-step plan or provide a Google map. He just said that he will show him which implies he will give directions as Abram went. Abram wouldn’t know the next step until he took the first step. All he know was that God promised to bless him and that was good enough.