newly diagnosed

It isn't always easy to tell the dfference between T1 and T2. They tend to diagnose by making assumptions. It used to be that any adult would be considered a T2, however there are some characteristics which give clues. Typically T1 comes on over weeks or even days, with weight loss and considerable thirst.linked to a lot of urination. T2 tends to be slower and less obvious. It can creep up in a sneaky manner, almost without symptoms.
Treatment gives further clues. Insulin therapy will control either type of diabetes, but the oral medications and diet only treatment, generally only work for T2. T1 always ends up needing insulin
This is because they have different causes. In T1, the pancreas stops producing insulin, so glucose cannot be transported to the cells. In T2, the body becomes resistant to its own insulin and doesn't use it properly.This is a simplification, but gives an idea of what's happening.
No -one knows definitively what causes diabetes. It obviously isn't a simple cause and effect scenario. It's fashionable to call T2 a "lifestyle disease" and blame the patient. This fails to account for the loads of people with "at risk" lifestyle, who never develop it and the ones with no obvious risk factors who do.
Your medics are right in saying that controlling it initially is more important than knowing which type. ( there are actually more than 2 :cry: ) As you learn more, you will find clues in yourself and it may be necessary to do some more tests which can give more poineters. First. Get under control. ITisn't anyone's fault, but YOU have to cope with it.