Banishing spell?

I have this person in my life who constantly wishes me harm from far away and I wish to banish her, not cause her harm just push the negative energy away from me. Also, my mom is having severe bad luck all the time and i really feel that its someone trying to give her harm. Are there any easy banishing spells i can perform to remove this negativity? Also, please note that i do believe in jesus very much and i am not planning to make witchcraft a habbit.