I am (re)developing a stutter. Please help?

I am (re)developing a stutter. Please help? I vaguely remember stuttering as a child or at least being very nervous when speaking which gave me kind of stutter. But lately, I have developed a stutter when I am speaking infront of like.. 5 people or more. My voice either COMPLETELY blocks up or I start to stutter. The thing I am most scared of is it getting worse so I can't speak to anyone at all and I have to tell teachers, fellow students etc. Not to say it hasn't affected me at all, seeing that i haven't talked to anyone but my mom, dad and sister for about... 5-6 weeks? (except for a few sentences to fellow students) What do I do??