There is no cure. There are ways to adapt to stuttering so that you feel you stutter less and there are also tools that may or may not help you reduce how much you stutter, but there is no cure. Anyone trying to sell you a cure is lying to you. Most people eventually adapt to stuttering through various coping mechanisms, such as breathing techniques, increasing self-esteem, accepting yourself for who you are and learning to live well with your particular speech patterns. Remember, it's a journey. What is frustrating now won't always be the case as you learn to adapt to your fluency.