Yes, telling negative energy to go works well. You are the master of your physical domain. I once went through my parents house while everyone was out and told all the ookie spookies to vacate the premises pronto! I just stormed through every room, told them I'd had enough, and commanded them to leave. Worked wonders. It also raises your energy to do something like that. Use that third chakra!
Fear can attract them to you, so make a point of going to bed feeling empowered. Imagine an astral shield, armor and sword before going to bed.