Not sure what your question is exactly. Study magick before casting it.
Basically magick is a neutral force found everywhere. It is part of nature, ruled by nature, and cannot contradict nature. Magick only effects forces and does not create dramatic, instant, physical change. As also mentioned magick is neutral [there isn't 'white' or 'black' magick] it is the intent of the caster which gives it a positive or negative charge.
There's a few forums and articles you could read to give you a better guide or pick up a book for beginners.