Get your tow rig into the line for the ramp, leaving a driver in the boat if possible. When it's your turn, you put your trailer in the water, as promptly as possible. Yes, there is some art to backing in a trailer. It gets a lot easier if you put your right hand on the bottom of the steering wheel and NO MATTER WHAT HAPPENS, leave it there, remembering that if you move your hand right, the trailer will go right. Move your hand left and the trailer will go left. It's best to learn to back up by watching the trailer in the rear view mirror. That way when you get old and stiff like me you won't have trouble turning around to watch it. Start with the trailer straight, and make small corrections-it gets easy after a few hundred attempts.