Hi
@Aaron meikle
Can I ask how long you have been T1 for? I believe most new T1s now get advised on carb ratios and so on fairly quickly but some older ones never get sent on carb counting courses or DAFNE (Dose Adjustments For Normal Eating) courses and don't get any official education on adapting our insulin to our food. (Well, I basically winged it until about 7 years ago when a DN actually suggested some carb ratios to me, which I now adjust on my own)
It is possible to do the calculations on your own. If you can't get sent to a DAFNE course then BERTIE might help
bertiediabetes.com
Basically, assuming you are on a basal bolus MDI (multiple daily injections regime)
Your basal - carries you through the day and night if you don't eat anything. Once this is correct you can then calculate insulin doses before each meal by
insulin = amount for meal + correction dose
amount for meal is ( insulin/carb ratio) multiplied by the carbs in the meal.
correction dose is calculated on whether your blood sugar before the meal is too low or high (it can be a negative amount if you are running low)
Good luck.
ps the nutritionist at my diabetic clinic asks for a two day food and blood sugar diary before each annual diabetic appointment so that she can check out her diabetics' various carb and insulin ratios.... (Disclaimer, though I had my first 30 years of diabetes in the UK, my last 7 have been in New Zealand.)