Why do i keep having such mucked up dreams?

It sounds like you are just stressed out. Seeing death in a dream does not mean you will die. In fact, some people think it represents change and renewal. Also, if you are watching a lot of gory movies and playing violent video games this can have an impact on your dreams. There is nothing wrong with a good scary movie once in a while, just make sure you balance it out with some positive images! Whatever you do, don't worry about it. Everyone has weird dreams sometimes and usually they mean nothing! Best of luck!