In my field, it is normal to apply in 50-60 places, get recruiter call for maybe 20% of that, get intervirew for 5%, and if you're luckly get a single job offer. Everyone is looking for the right fit. You need to keep on trying and you need to be yourself. The more at ease you are with yourself ( with or without your stutter), the better chances of potential employers assessing your fit for the job. If the job is the right fit for you, you'll be much happier as well.