I see from your details you are in Essex.
There are support groups associated with 'diabetes.org.uk' - I was looking for people to chat to in Suffolk but the Ipswich group is closing down due to lack of support.
There are groups in Clacton and Colchester, as well as others further in towards London.
See
http://www.diabetes.org.uk/In_Your_...ing/Voluntary_groups/Listing_of_local_groups/
There can be a varation on views between people contributing to 'diabetes.co.uk' and the party line from 'diabetes.org.uk' over diet and testing, but we are all in this together.
Just remember that everyone has an opinion, but that is what it is - an opinion
Now take a deep breath and try not to panic.
The initial prognosis can be really scary but don't take it all too much to heart.
I was completely thrown by all the advice about feet - constant checking, always wear shoes around the house etc.
Three years on I walk around in bare feet just like I did before diagnosis.
I heal just as well as I did before I was diagnosed, so small cuts etc. are not an issue.
You have had a wake up call and as long as you really listen then you can sort yourself out no problem!
Remember that a lot of the really bad news items are for the clinically obese who will not take responsibility for control of their life. Unfortunately, some people work hard at it and still get problems but in general people who are proactive about their lifestyle do pretty well, as several people have already posted.
As already suggested, tell everyone in your family but in a calm manner - this isn't the end of the world.
Remember there is no point in blaming yourself or feeling guilty; you are where you are and the main task is to deal with it.
You have diabetes so you are going to have to make some lifestyle changes but your family will want to help you.
Once you have settled down a bit, start absorbing the advice about lifestyle and diet and set yourself some goals, and share these with your family so they can support you.
Each time you achieve a goal, re-asses your health, blood glucose control and diet and decide if there are areas you can improve.
It will take a while for all of this to sink in.
I have been gradually changing diet and lifestyle for over three years now and I am still finding things to modify and new things to learn, but in general I have been able to improve my health, reduce my weight, and reduce my blood glucose levels progressively over this period.
Take a deep breath and move on.
You can control diabetes and there are loads of resources to help, as well as loads of support from fora such as this one.
Cheers
LGC