NHS will be a waiting list, and the length of time you have to wait will depend on how many other people in your area also need help. Often the priority is given to children, so the wait can be long but it’s definitely worth it in the end. I did my therapy when I was a kid. My sessions were weekly but I know people who have gone biweekly or fortnightly depending on the severity and the progress they’ve made. This will be up to you and your therapist and may be decided based upon your own time constraints or theirs. I could still use therapy sessions every now and again as an adult. Different periods of my life, such as times of stress or pressure, can make my stammer worse. Don’t go in thinking you’re going to be “cured” or it will disappear. Therapy helps you improve your speech and you will always find the odd word or have the odd time in your life in which you stutter. Therapy helps improve your speech and gives you techniques and methods to combat your stammer. As a child, my sessions were unlimited. And I don’t have experience of speech therapy as an adult. But I do know that counselling is limited to a certain number of sessions for adults. Speech therapy may be the same or may not. My GP was the person who referred me. And even if it’s different in by our area, your GP will point you in the right direction. Something I never hear stutterers talk about is counselling. Later in life I received CBT (cognitive behavioural therapy) counselling which covered things like social anxiety and stress regarding my stammer. We covered it in a number of sessions and it definitely helped me mentally fight my stammer and the stress and anxiety that goes with it. You could talk this over with your GP if you felt you needed it, or even your therapist. I only mention this because you said people have mocked and laughed at your stammer. Perhaps social anxiety plays a part and it might be worth exploring for you. So keep that in mind. Best of luck my friend and don’t let anything hold you back!