@Vezz - I agree with
@ellesangel on this - it's a topic in it's own right..
By own sense is that we (as Diabetics of all types) tend to focus on control of Blood Glucose, because it's the thing we can measure, but we should be thinking much more, if you like, one step prior to the amount of glucose in the bloodstream right now.. so a much broader look at the things that affect blood glucose; Diet is clearly one of those, reducing sugar and starch, but also important is Stress and Sleep - and there are definitely things that anyone can do to help with both (and any improvement you can make to your sleep quality and lower stress will help with diet adherence, so it becomes a virtuous cycle).
Personally, I think sleep is the thing that matters most that we give least priority to - but it's a big topic, and not what you asked about...
Stress, again, personally, I started to learn to meditate at the start of the year - I'd just had too many recommendations to keep ignoring. I can only say that I've been amazed at the difference it makes - and just how wrong all my assumptions about what meditation is, and what it does for you.. I can't recommend it enough. Just 10 mins in the day, but as a routine it's the most valuable 10 minutes each day that I have..