Stuttering is a disorder not a disease. No one knows why it happens but it can be treated. Did you know that some of the most famous people in the world once stuttered? Yes its true and this happened years before the world ever head of them. But stuttering can also happen later on in life. The question now is how to overcome stuttering.
Since you are not a kid anymore, dont expect your parents to be the ones to get you some help. This is something you are going to have to do yourself and you have to do whatever it takes to improve your speech abilities. You may need to get professional help which was not available years ago and try various techniques to find that right one that works.
The professional you should consult with it a speech language pathologist because he or she has the experience to deal with such a disorder. When you go looking for one, make sure he has a certificate from ASHA or American Speech-Language-Hearing Association and has passed the state licensure exam. Once he is able to assess your condition, only then will he be able to recommend the right treatment.
Someone once said that the greatest fear is fear itself. If you let your fear...