Practicing words by yourself, helpful?

Practicing words by yourself, helpful? Often while I am doing something I will encounter (read, think, or hear) a word that I can tell I would stutter on in that moment. If I’m by myself I will often try to practice saying the word without stuttering, however I’m now wondering if this is a bad idea and just making things worse, but like all things with my stutter, it’s hard to know for sure. Does anyone else have any experience with this? Does it help? Hurt?