If you've been working on your stutter for a few months and haven't seen improvement, visit a professional speech therapist. A speech therapist will analyze your issue and recommend treatment.  If you need assistance finding a speech therapist, the American Speech-Language-Hearing Association has a list of resources to help. For more information, visit https://www.asha.org/public/Help-Finding-a-Professional/. You can also call the ASHA information hotline at 800-638-8255. Speech therapy requires a lot of work outside the office. Your therapist will probably recommend a series of exercises for you to do at home. Follow this regimen and do everything the therapist suggests. Remember that speech therapy can be a long process. You may be working with your therapist for several months. Stay patient and confident throughout the process. If you stutter, you may feel like you're alone. You aren't. It's estimated that 3 million Americans and 70 million people worldwide stutter. There is an active community of stutterers who support each other, and becoming part of this community can help give you the confidence to overcome your condition.  If you're in the United States, the National Stuttering Association has local support groups. To find one near you, visit https://westutter.org/chapters/. In the UK, the British Stammering Association hosts support groups as well. For information, visit https://stamma.org/connect/local-groups. In you're in another country, do an internet search for local stuttering support groups and don't hesitate to reach out for assistance.

Summary:
Consult a speech therapist if your stuttering doesn't improve. Follow the instructions from your therapist. Visit a stuttering support group.