Hi Alison, welcome to the forum!🙂 Soooo much information to take in at first, so it's best to try and stay calm and pick up on the really important stuff. The main thing is that diabetes is a condition that you can have some kind of 'say' over, and it needn't disrupt your life. In a lot of cases, people actually come to realise that they are healthier than they would have been, as the requirements to follow a healthier lifestyle gradually become second nature.
I was 49 when diagnosed, and about to fly off to run a marathon, so I know all about the shock of diagnosis! Something I found helpful was reading up all the information I could find. A book that is frequently recommended here, and specifically for Type 2s in your situation, is 'Type 2 diabetes, the first year' by Gretchen Becker - you can get it for ?6-?7 on amazon.
Feel free to browse around and ask any questions you may have, you'll always get a helpful response.🙂