Magic itself is neutral, being neither good nor evil. The intent of the practitioner determines the magical outcome (be they positive or negative) of spells, rituals, etc.
If you are new to magic, and haven't already done so, I would suggest learning your basics. These include:
*Belief in yourself and your abilities
*Circle Casting and Releasing
*Correspondences (colors, days, lunar phases, etc)
Newbie Central, Tips, and Faqs might also help you out. These are all located on the Home Tab. A thread called "Starting Out," which is located in the "General" section, might also help give you a few pointers.
If you have any questions that you can't find the answer to on the site, let me know and I'll help you to the best of my abilities.