Actually, FREE WILL can change His plan. If you choose to live in your flesh, you are following the enemy and what he wants you to do. When you continually follow the flesh, God will hand you over to yourself. Romans 1:24 This is not God's approval or His hands all over you, this is God being frustrated with you continuing to go against His word. He is jealous and decides to hand you to yourself for destruction. Not wise.
God works his best miracles through a storm ... the Bible says that God rides on the clouds, using them ss his chariot ... so when you are battling waves (life's unexpected stresses- hang on, because God will come and rescue you- if only you ask Him to do so