I thought being prepared helped, it does and it doesn't in my situation. I can talk with friends comfortably and have mixed rates of stuttering. My job is purely scripted and usually I'm fine in work but it can and does often flair and it's really embarrassing and devaluing imo, it really puts me down in the workplace even though no one seems to care for it. Sleep did affect it in my old job, if I had less than 6 hours of sleep or so, I would stutter a lot more in my old workplace but not anymore, it's varied but usually sleep does happen. Since my new job, my voice has started cracking more too, which adds to the embarrassment and I'm unsure if it's related to the stutter or if it's just because I speak so much more than I used to. My throat would often feel blocked or congested and 9 times out of 10 it can't be cleared until I'm on a break. I'll drink hot drinks, litres of water each working period (between breaks) and I have throat soothers, some with menthol and some without and they did used to work at the start but now their affect seems to be wearing down. I usually feel stressed and try to ignore it, it doesn't seem to affect my stutter as much as it used to but I do have ticks, mostly facial ticks and I've developed some hand gestures too, unsure if they're considered ticks or not but the facial movements are definitely ticks. I also didn't always have a stutter, I developed it in my early teens, and I'm only 19 now so I've had it for a few years at most maybe 5 years by a good guess. I find I've become more unsure of my stutter and its changed and keeps changing too, it's so inconsistent so it's harder to predict and suppress. Best of luck to you too!