Hello Michael. For a spell to work you must know the basics (Grounding, Visualization and Intent) and moon phases (you will be using different moons for different spells) and overall belief in yourself and what you are doing for a spell to work. Start from the bottom and pick up a book or two or read the beginner articles on this site about the basics and work your way up. Soon you'll be able to successfully pul off a spell.
Before you do anything like a spell or a ritual in witchcraft you must know how magick work and what is magick
Also I suggest that you have a look at these books
Wicca: A Guide for the Solitary Practitioner by Scott Cunnigham
Living Wicca: A Further Guide for the Solitary Practitioner by Scott Cunnigham
The Truth About Witchcraft by Scott Cunnigham
Divination For Beginners by Scott Cunnigham