I do wish more reassurance was given along with the diagnosis - some people seem terrified out of their wits by what they are told by people who should be giving them all the information they need.
For most type twos all they need is a glucose testing meter so that the level of glucose in the blood two hours after eating can be checked. Is is food which elevates blood glucose, in particular anything with starches, bread, rice oats and potato are the main culprits. check your levels after eating and if you are getting high levels of blood glucose then the meal you had was too high in carbs for you to cope with, so either swap - if it one of the usual culprits - for a lower carb alternative, or cut the portion size of one of the foods next time you have it.
Doing the 'eat to your meter' process can lower your blood glucose levels to normal - if you are lucky it is a very quick and easy thing to do, and it usually means that your metabolism starts to correct itself, so weight reduces but also energy increases. I am down over 40lb in a year from diagnosis, without trying. I am not eating low calorie or going to the gym, just fewer carbs than on the cholesterol reducing diet my doctor put me on.