Hello and welcome.
You've found a good place on the internet.
We are a very supportive community.
However, we are geared more to exercise than diet.
We do talk about diet, but not to the extent of some other forums.
over at Mark's Daily Apple deal with nutrition a great deal more.
Why not head over there
and introduce yourself.
I suggest you begin by cutting out sugar.
You can read books and join internet forums, but removing sugar will always be the first step.
Also, please read this good post from the excellent Mark Sisson:
The Definitive Guide to Insulin, Blood Sugar & Type 2 Diabetes