While this will only lessen the severity of your stutter, it will help increase your confidence when putting yourself in real-world situations. Remember it is better to confront your problems than to hide from them.
Feign stuttering. While this may seem awkward at first, voluntary stuttering can help relieve the tension of stuttering. Just have fun with it, and realize that your situation may not be as bad as it seems.
Practice by stuttering over the syllables that you have trouble the most. Like, for example, if you have a hard time with the hard 'c', say, "I am g-going to c-c-cook dinner."
Breathe, talk slowly, and pause. Formulate your thoughts and then deliberate them clearly. If you find you're about to trip on your words, just pause. Take a breath, and then say the next phrase. Pause once again, and then finish your sentence.
If you're stuck on a word while pausing, and you feel that the other person is going to interrupt, please ask him or her nicely to let you finish. Interrupting someone by guessing what the word can demonstrate impatience and inconsideration, and can only discourage you more.