Anon37011- That is a great question that really has to do with anxiety. There are many books written on this subject, but if your condition becomes too much to bear you should seek a therapist that can address your anxiety directly.
Pediatric speech therapy is offered after an initial evaluation is done on the child. Usually a teacher may bring the speech problem to the attention of the parents who officially have the child tested for speech problems.
Often the child will be asked to say certain words to determine the level of faulty speech. A speech therapist will then offer the results to the parents and provide a detailed outline of the speech therapy goals.
Speech therapy articulation might include exercises in blowing to create stronger muscles in the mouth. Usually speech therapy activities are made fun for the child and could use lollipops or pixie sticks in the speech therapy treatment.