Dont listen to anyone who is trying to take away your decision. They are all addicts. Iam 13 years old and i have the same problem as you, i want to tell my parents but iam so ashamed, they will be angry. I will recomend you to go to your personal doctor and he will tell you what to do, he will probably send you to sexologist or psychologist to diagnose you, and they will set you a tratment, they will also prescribe you some medication, and recomend to you some therapist and sex anonymous groups. Dont worry masturbation is normal, but not if you cant control it. Dont worry about it and dont forget to seek help and treatment. Hope i helped.