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.
I really like this bible verse because it talks about something that we all need. Its saying that God will help us and give us strength if we believe in him. Show God that you love him and he will provide you with great things in your life.