My stutter it's been getting worse when I talk out loud.

My stutter it's been getting worse when I talk out loud. So i'v heard some people say that talking in front of the mirror or talking to yourself out loud is gonna help your stutter,so I decided imma try it out and iv Been talking to myself when I'm at home out loud to see if I could improve iv been doing it for like a month now and it's seems like my stutter is not improving its actually getting worse. I remember like I didn't even stutter when there was no one listening to me but now it seems like I stutter even when no one is listening. Is it because I'm constantly thinking about my stutter and its making it worse? And my stutter has changed, previously it was like t-t-t and now it's more like I'm having difficulty getting the first word out than I'm good, sometime I'd still do bought though. If someone knows why I'd really appreciate it if you'd help thanks.