Welcome to Our World of T1D! Yeah, none of us wanted diabetes but together we can make life more bearable by sharing little things that we do to live a full life.
My single word of “help” for you is RELAX. Certainly you are going to have many occasions when your blood sugar levels go high and occasionally very high, and other times when your blood sugar drops suddenly. As time goes on you will develop a 7th, 8th and 9th sense and almost automatically “feel” what your body is doing and instinctively know what to do to get yourself back in line. What we call MANAGING my diabetes; I say “managing” because we can not really control T1D. With your high BGL [Blood Glucose Level] as well as with your low BGL your stress levels will kick in and exacerbate sugar management - very often, it can be the other way around where stress, hormones, excitement, will cause your sugar levels to rise.
To expand beyond my “relax”, I suggest that you keep an eye on what you eat. YES, you may eat almost any [healthy] food but be aware of quantity and try to remember in what ways different foods affect your BG; some foods push my BG very high quickly and then it drops, while other foods react in me very slowly - sometimes pushing me high several hours later. If you use MDI [Multiple Daily Injections} or a pump and count carbohydrates, try carefully counting the carbs you eat and take the appropriate amount if insulin to cover that food. The hardest food for me is french fried potatoes - I need insulin for the carbs in the potato as I’m eating and then three hours later need more insulin to counter the BG rise caused by fat; yeah, after 60 years using insulin I’ve finally smartened up and very rarely will eat french fries.
My wish for you is a happy, full life doing everything and accomplishing whatever you desire. Don’t short yourself on exercise, be healthy and active.