Sometimes you just have to do it.  I think I have the worst job a stutterer can have; I am a personnel and administration officer in the Army.  That equates to customer service and many briefings.  I knew before I ever chose this job and I wouldn't have wanted to do anything else.  Do I have rough "dysfunctional" days, I sure do.  However, I get myself through the day.  After a day of repeated briefing and speaking to groups of people I feel as If I ran a 100-mile marathon.  Trying to be "functional" is very tiresome, these are the days I look forward to going home to my "safe zone" where I can relax and speak without having to work up a sweat trying not to stutter. Do not, under any circumstances, avoid speaking in public. Practice makes perfection and only by doing it will you loose your fears.