They are diagnostic of prediabetes/diabetes and an OGTT or hba1c test should provide more information. If testing shows that you have turned diabetic, you can thank your lucky stars that it has been detected at such an early stage and you have plenty of time to do something about it. I hope it's not the case but if it is, with some effort and a positive attitude, it shouldn't affect you much at all. Compared to those in the high teens, twenties and thirties that you mention, yours will be a walk in the park so to speak. In fact, that'll probably be one of the things on the list to start doing. I had fasting levels around 9.8 but managed just with diet and exercise. I don't know anything about your situation but if you can, have a go at that first. Medication isn't mandatory and it is sometimes no more than a knee jerk reaction by the GP.
Much worse off are those who already have diabetes but who don't know they have it. They are unknowingy damaging themselves.