This might sound weird but for me when I wake up every day, I can usually tell how bad I’m going to stutter that day. My jaw usually feels tight, almost like I can’t open my mouth all the way. Soooo....I bust out a gum and start chewing to exercise my jaw and get it loose. I also recommend having something to drink to help with blocks and fluency. Maybe try wearing a headphone or earplug during that time. It makes a difference. Last but not least, congrats on getting the job! Woohooo!!