There is no way I can describe for you how I use elevator on every landing every time, as all landings are different..altitude you enter the descent..wind speed and direction..traffic..etc....What I don't do is trim for landings.....
like everyone else throttle is altitude and elevator is speed.....
Good landings come from good approaches..very little correction left and right..with the airplane heading so that the touchdown point is on the runway...which is several feet in front of where you are standing....