Magic is very real.
Magic isn't just about casting spells, summoning spirits, curses or anything like that. It is also a lifestyle, a path through life that takes hard work and dedication.
If you didn't meditate and work with energy for a while (prehaps months to years) and you decide to immeadiatly cast spells.. there is a very large chance that you do not understand what you're doing enough to successfully cast it or even to not accidently disrupt or negate its effects.
Actually casting spells is closer to an "intermediate" stage in magic. Meditation and various energy practices and exercises all encompass basic understandings. Once you rise through and comprehend the basics and the fundamentals of the type of magic you wish to study, Then spell casting *Could* come into play.
If you wish to discuss this in more depth, feel free to mail me.