When I say God is in control, I do not mean that God is controlling everything that is happening. If God were actually controlling, there would be no sin. But God is in control, meaning He allows people to do what they want; and sometimes He intervenes, sometimes He stops them.
God is in control in the sense that eventually everything is going to work out according to His plan. He is in control of the future. God is in control of the present in the sense that nothing happens that He does not permit to happen. God permits many things to happen that He does not will to happen. He does not want me to sin, but He does permit me to sin.