Well, it is easy to say this not being the one having to do it...
I agree with you about the insulin part. I don't want to do it either but I will if that times times. It probably is not "if" more than "when." Diabetes is progressive with some exceptions, they say. The length of time from diagnosis to taking insulin just depends on your particular situation. The progressing depends on so many different things. Many, many people start on insulin when they are diagnosed because it took longer to be diagnosed. They give the figures of up to 10 years to be diagnosed because it is a stealth disorder. There are some tests that say to some degree what your pancreas is producing insulin.
The other thing here is just because you are going on insulin does not mean that you have to stay on insulin. How you approach your diet and exercise program can change that situation, sometimes. I say sometimes because you have no other choice but to use insulin. As much trouble it can be for you to handle insulin it is not as difficult as it sounds. Lose the extra weight and that will help your high blood pressure - google Richard Bernstein and learn the ins and outs of eating. Don't accept blood glucose levels that the run of the mill medical profession says are ok. Your numbers are high - bring them down. Bringing down your blood sugar will help bring the other things into control.
Take exercise seriously. Very seriously. It is not just recommended because it helps - it is part of the treatment just as medications and diet.
Blood sugar of 120 before eating is high. Type 2's in control will see numbers below 100. It may not sound like much, but it it. Control with diet might still be possible if you are aggressive with your approach. I don't mean completely with diet at this point - take it week at a time. Get your numbers down, lose weight and you will see differences. That may require insulin - which does not mean you have to be on it forever if you change things enough.