Parapsychology is a branch of science. Like psychology, it's considered a 'soft' science. A science isn't 'real' or 'not real', it's either credible or not, or somewhere in between.
Parapsychologists study phenomena, and come to conclusions based on the evidence discovered. If the scientists follow a rigorous procedure, its conclusions will be considered accurate, under the specified rules of the studies.
Parapsychology is not something you believe in or disbelieve, it's a branch of study whose conclusions you either trust or not. Like psychology. That's all.