It may be that your aims are unrealistic instead of aiming at complete fluency in all situations, it may be more realistic to go for control and management, or else an acceptable level of fluency in particular problem situations such as telephone conversations. Or if you have been working hard on fluency techniques, you may have neglected stress management. Again, if you have been concentrating on the psychology of stuttering, it may be time to also attend to specific fluency techniques. Get involved with self - help or support groups such as Speakeasy in a practical and active way . Identifying oneself with such an organisation is a positive way of changing your self-concept.
Real change takes time.
Part of the problem of chronic stuttering is that it is usually not enough to just work on one's speech. An individual working toward better speech frequently finds that the subconscious mind, after a period of relative fluency, rejects the progress made. It follows that those who really wish to get better should also attend to the psychological side of stuttering and fluency. The mind has to gradually adjust to the newfound fluency and this process takes time. And lastly, use the means at your disposal.