Don't panic! You still could be in honeymoon phase. + I get random days where my bloods are up the left even tho I've carb counted everything correctly! Under 10 is still great! Don't beat yourself up about it. Remember blood sugars can be effected by anything, weather, stress, periods, moods, sleep. Anything and everything. It could just be a bad day. Take tomorrow as a new day. Don't do anything drastic with insulin because it may just be something like your stress levels or an infection working on you.
I've been diabetic from 2.5 now 21. If you need any other advise give me a shout! Xx