Annoyed

Absolutely normal reaction - if you ate ordinary bread based pizza then the rise in blood glucose is often going to be apparent for many hours if that is how your body reacts to it and have a knock on effect for days - I got the same sort of response for all high carb foods, right down to legumes.
There are pizza like alternatives which people have created in order to satisfy the habit.
I had to eat low carb for decades trying to keep my weight under control, so I am a stranger to many foods which a lot of people take for granted - but the recipes are out there, if you look.
If you use them you can eat dinner, chill out afterwards, then next morning wake up smug after an undisturbed night's sleep, and find your blood glucose normal.
Stress can raise your blood glucose, but trying to be a bit more philosophical about life is a big help, not just with diabetes. I find that chunks of roast meat are an excellent basis for a good dinner and pleasant evening to follow. Even better are dinners followed by playing music - I just came back from band practice and am feeling really good. Blood glucose is 6.8 mmol/l - no tablets.

Although I had a really good day with regard to carbs my numbers have seen a rise because I am anxious about a hospital appointment tomorrow. High emotion directly affects our readings and I have found that sometimes it can affect our resolve when it comes to to eating the stuff we know may not be the wisest choice. This in turn can certainly feed into the stress so it can become a vicious circle. So, yes, back on the waggon and start from scratch. Hope your period of stress passes and that you can quickly return to a state of equilibrium. Good luck.

Good luck with the house.

I'm into 2nd week testing out the FS Libre system - I have a similar response to you although not as pronounced. I had a slice of pizza the other night (on purpose), it both spiked my BS quite high for me and trouble my levels stayed high for much longer than I liked.

Well, that'll teach you a lesson!
The bonus is that you recognize a slip and want to avoid others.
Buying a house is a BIG stress, hope it gets sorted soon
Keep going, good luck.

Aaarrrgggghhhh! House buying and/or moving... VERY stressful.

All I can say is that I am glad that the last time I moved was before I had access to blood glucose testing equipment - because the readings would not have been pretty. Combo of stress, irregular meals, weird amounts of physical exercise (packing and hauling stuff), work all day, prep for the move or unpack all evening, and then the hassle of preparing food in the old and then the new partially packed kitchens...

Hopefully I will be staying in this house for a looooong time

Chalk it down to experience @dazzeur . The main thing is that you recognised what happened and are taking active steps (!) to rectify it. You're already back on the right path!