hi and welcome.
I think the big thing I wish someone had told me at the beginning was "forget everything you think you know about healthy eating".
A close second is that you can do something about the consequences of your T2 diabetes, no-one else can do it for you, there's no easier solution, and you need to think about it as your lifestyle from now on.
I had a list of tips, but it was in a blog on this site. Unfortunately our blogs have been down for over a year.