about 5 years ago I had that experience every single interview, i literally not just blocked on words, but fully froze and mumbled nonsense. Now I have had countless of job offers and am very happy in my current job with decent pay. You will hear this a lot, but it's all because I actually went and did something about my speech as I knew there was no point whining about how life sucks. I went onto a McGuire Programme Intensive Course, came out a different person (came out as what I actually am, a confident person who knows the interview questions) and knew how to control my stutter. I can talk about it all day, but there's no point reading my praises about the program, go try it yourself or even visit and observe an open day.