I recently quit my customer service job. it was - in my opinion - pure torture. I’ve been working these jobs since I was 16( now 24) and my stutter hasn’t improved whatsoever. If anything, my disdain for humanity has grown as a result. If the idea of talking all day seems pleasant to you, by all means, pursue it. For some people this kind of exposure can improve their stutter and even the anxiety associated with it.