36M, Working as a scientist and having frequent telephone conferences, giving talks or having to win customers and particpants for projects. I didn't start my job doing all these things, but grew in doing it over the course of the last 10 years. So basically every year I do something "more terrifying" - the audiences grow larger, the sums discussed during project meetings get bigger, you get the picture. Every time the challenge gets ramped up, I want to avoid and cancel, but in the end, I always push through somehow. And I get a lot of good feedback for it. Interestingly, the more I've done these things, the less I actually stutter in these situations, and more importantly, I stutter less in "normal" day-to-day situations. In fact, if I concentrate on being relaxed and not giving a shit, I can speak almost fluently in normal situations. I figure it's because I get confronted with challenging situations a lot, my brain says "aw f\*ck it, I've got more important things to be anxious about" during normal conversations. Therefore I think that - at least for me and the way I tick - the constant "ramping up" of challenges at work leads to growth as well personally as skill-wise. Therefore, if you have the chance to expand your working field, take on new responsibilities, basically everything that leads to having to deal with new challenges - do it. You'll succeed. And trust me, feedback from co-workers will be good. In my experience, you earn a lot of respect for doing your thing despite having a speech handicap.