Wife and I deliver RVs for a living. Your brake controller should be set so that you don't lock up the trailer tires when you put on the truck brakes. Use enough brake so the trailer helps you stop otherwise it will push you. Each trailer is different. There are good videos on youtube for setting up the hitch. Basically hook up the ball, raise the trailer/truck 4 inches above normal ride height , hookup the torsion bars then lower the trailer. Watch a video it will make sense when you match up your set up with the directions. Definitely get the trailer wiring harness checked to be sure it is wired correctly. Take it easy and you should be fine.