Electric Brakes

Today my car is going in the shop to get electric brakes installed. On the road, I don't really seem to have any problems without the brakes hooked up, but I thought it has just been putting extra wear and tear on my car brakes. I do have a problem though backing the trailer down my gravel driveway that has about a 8% grade. The trailer can pull my car backwards....so I hope the brakes will help. I haven't been doing much on the trailer as house chores have taken over my life....mainly painting the outside. I hope to get it done soon and possible go camping for a weekend before the snow flies.