How do I fix this?

How do I fix this? Hello everyone, I’m from the U.K. and just wondering if there is any way to get some sort of speech therapy in relation to stuttering on the NHS?? I had a really bad stutter as a child and it got better as I grew older but recently I’ve noticed that it’s got bad again. Ever since I started working in jobs that make me socially anxious (I work in a call centre) my stutter has got so bad… makes me realise that it never really went away, It was always there