In Succession 1291일차 All you have to do~하기만 하면된다 All (We)you have to do is enjoy the view! All you have to do is wait. All you have to do is keep practicing. All you have to do is think positive. All you have to do is relax. All you have to do is keep studying.
In Succession 1290일차, There is no need~할 필요없다. There is no need to worry. There is no need to change rooms. There is no need for an argument. There is no need to be angry. There is no need to dwell upon the old things.