I managed to see a speech therapist at an NHS a couple of years ago. I slipped through the waiting list somehow, but in this area the waiting list is years! It could be different in your area. The therapist told me they are mostly focusing on extreme cases where people's speech is so badly impaired that they cannot manage in normal day to day life. The therapy for stammering the NHS therapist told me was mostly based on acceptance and self-confidence / self-esteem. They will offer various tools (like DAF) for different people depending on their situations but it's case by case. But if your speech is well enough to get basic tasks done, like buy food, speak to a doctor, buy a train ticket, and so on, you may find yourself pushed out of the therapists office to make way for someone who can't do those things. Your post makes me think you are very advanced in your self-diagnosis, which is a good thing. I would imagine that counselling would most likely help you more than speech therapy at this point. And it's easier to access different forms of counselling than speech therapy, with online apps and even support groups where people just meet up to get things off their chest. Plus, with your self-awareness of your speech issues, you can likely self-try DAF (and other) style devices and techniques devised for stammering. Just my 2p!