Hi young,
Don't get too stressed out over it. We have all shared your exerience when we first started impersonating pin-cushions. You'll learn the ropes soon enough, especially with the help of so many fine people on the forum.
Sarah's right about your meal last night. Other than what little meat may have been in the bolognese, and the fat in the ice cream, your dinner was pure carbohydrate. If you eat meals like that your two options are (1) inject a lot more insulin to cover the blood sugar rise, or (2) reduce the carbohydrate and replace the calories with more of the good stuff - meat, green veg, nuts, cheese etc.
All the best,
fergus