Have you ever had a practice session before trying to speak slow in real life? If no, do that first and don't worry about speaking slow with other people just yet. Funny enough, just renembering to speak slow and actually maintaining a relaxed way of speech is a skill that you have to practice first, prefferably in a comfortable environment. So... 1. Do the excercise 2. After I [Insert whatever habit you do, prefferably in the morning] I will dp the speaking excercise. 3. Celebrate The more you practice by yourself the more easier it'll be to impliment it in real life.