Veronica,
Your friends here (and yes, we’re already claiming that kinship) have given you great advice. You are taking bold steps by asking these questions and educating yourself by what you find on the internet (which can be a bad idea, but as an admin here at tudiabetes, I promise our team does a lot to keep our environment safe from false information - it’s like a full time job!).
I agree with everyone so far. Don’t incite the highs. They do damage. I was diagnosed in a coma from ketones (DKA) as a child and you do not want this to happen. A high sugar does damage because your nerves and retinas and capillaries cannot withstand glucose traveling across them in these quantities. And the ketones cause your blood ph to become acidic and your lung functioning can halt.
Most of us are happy with 100 all the time and no higher than 140 at an hour post-meal. The best times to check your sugars are an hour after a meal or half an hour before a meal when you inject the insulin. And keeping the meals healthier is a must for control. Insulin cannot handle bulk carb well and works more slowly than this carb can convert to glucose in your bloodstream. So assume those gummi bears spike your sugar to dangerous levels and then the insulin is working like a madman — better late than never, but still later than the spike — to undo what you just ate. And if your body is producing insulin, there’s a fight going on as this high sugar food stimulates your body to produce extra insulin and bring you crashing down because now you have more than you need on board.
I suggest you consult those links our members have given you, explore the boards on here, ask questions of everyone, and see if you can also schedule a meeting with a certified diabetes educator - a specially trained nurse/dietitian who can help you with the details.