Controlling nerves can help, but if you end in a normal public speaking course I don't think that'll do much good. It's not the root cause of stuttering. My father suggested the same things once (I also live in a 3rd world country and he thought I was just nervous all the time or something. They didn't even know what stuttering was really until I explaiend it to them). I don't know where you live, but certain organizations offer free speech therapy to children.