This is hard to put in writing so look at my attached funny drawing. Hook trailer to car so tongue is held in place by the ball. Position trailer so bend in tongue is against an immovable object such as a steel pole or corner of your garage or building if it is concrete or brick. Go to back of trailer and push sideways so bend in tongue is pushed against the pole or building. If you push sideways on the back of the trailer the leverage will multiply the force put on the tongue where it contacts the pole or building.