Before spells I would start researching a lot and then spells will come easy. But as far as spells go the easiest are the ones you create, and the first step is meditation. which helps with your focus, praying and moving around some different energies.
How about this. Meditate for 10 minutes calming yourself and clearing your mind. Now get some salt and some water (moon water and holy water both work) and sprinkle some salt and flick some water on the walls of your home and say this " Water and Salt where you are cast, no evil or adverse purpose last. Evil spirits all must flee. As I do will it, So mote it be!" Just a standard little banishing spell. Good luck!
Do not lose sight of the value of research and study. Rushing into spells before being prepared to do so can often times lead to either no result or an undesired one. While most think of Necromancy, name spells, and hexes as black magic; it is also using any kind of magic the incorrect way whether willingly or unwillingly. Thus why I would recommend being 100% sure you are well schooled and prepared for what you seek to accomplish. So study up and start small.