How long and often does your blood sugar exceed 10.0 mmol/L ?

Hi Guys, not really got anyone to discuss my T1 with so thought I'd ask on here, 10mmol/L or 180mg/dl is considered quite high by my diabetic educator, I usually go to work with a blood sugar around 12.0 (no bolus) and move furniture, this will last approx 3 hours before I have something to eat, when I will be around 6.0 - 5.0 range. Just wondering what other peoples blood sugar and insulin use looks like on a day to day basis. Cheers.