You can use those types of tools to get you through, I certainly did. One thing of interest, if you can speak the word alone, but not with others then it’s clearly not the words. It must be something else, seek why this happening. What is different in those scenarios? What is happening in front of others that is not happening while alone? As a stutterer we tend to look at the effect (the stutter) not the cause. What is causing the stutter to happen. If you can speak fluently alone then there is nothing wrong with your speaking. You physically can do it.