I remember the nightmares you're talking about. I was 10 and I was wandering if I could ever become a doctor, an actor or doing any other job that involved quite a bit of talking. I remember feeling frustrated not having the same choices as the other kids would have had in the future. It was a long and hard journey man, and learning to manage my stammer came with learning more about who I was, what I wanted and that increased the confidence in myself massively. I learnt that it didn't define me, therefore any job at any level with low or high frequency of talking was in the realm of possibilities. I understand it takes courage and a good dose of ignoring what other people think about your condition, it's not easy. That is a battle that you only know when you'll be ready to pursue regardless of how intense your stammering is. Being able to control and manage the stammer is one of the things that would make the whole thing easier but the first switch has to happen in your brain and I'm sure it will.