hey nathan, welcome aboard!
you're doing the right thing as far as the diabetes is concerned.
a lot of the diabetes tablets have the rather unfortunate side effect of making people gain weight, and insulin DEFINITELY makes people store fat.. and then it is even harder to control your blood sugars!
so controlling your weight now, and keeping your BSLs in the normal range without medication, is your best shot at avoiding any diabetes complicationsin the future!
good on you