Dreams are the visions we get at night, when we are asleep. The visions are shown to us by our subconscious mind and they are mostly related to or life and it often gives us the solution to our problems in our day to day life problems.
While some of the dreams are generally related to our life goals and ambitions, some of them tells us about where we are in our life at the moment. These may include dreams like you bring lost somewhere and cannot find someone to rescue you or some like a horror story or some like you are falling from a height.
I cannot say that you can get rid of these kind of dreams but there is a way to stop these dreams from following you and getting some wonderful dreams like seeing yourself being a success five years from now. To do this, you just need to get that positive energy all around you and start thinking positive about yourself.