My wife got the same diagnosis about a year ago. Crazy thing is, she's not even remotely overweight. They put her on some medication that is supposed to regulate her insulin.

My father has been diabetic for many years; he doesn't take the insulin shots, but he has to check his blood sugar several times a day and be very careful about his diet.

You'll be fine as long as you don't ignore it. Like you said, just time to make some life changes. On the plus side, a good diet and regular exercise will make you feel a lot better overall.