Sharing a few thoughts from what I have dealt with having had a mother with type 1 for nearly 30 years.
Having type 2 is not the end of the world, as your doctor said, weight control, exercise and diet are your best friends, but keeping stress under control too is important - it is amazing how your body can cause itself to change, almost like a mood ring.
Having a working pancreas (albeit in manual compared to auto - forgive the laymen term, but it does apply well) require more attention than you are obviously use to having to do. The trick is reading the feedback of that your body tells you, from Anxiety to tiredness, you can feel a range of physical and emotional roller-coaster stuff.
Metering is something that many doctors will torture you with if you are borderline type 1, I think the case is find a routine that works for you and (minus daily activity changes) you can zone in something close to meeting your needs without over-testing. Of course, like anything it requires YOU to understand how it all works, or doesn't in diabetes and make subtle changes that make the right differences.
The most important thing is far swings from low to high, each having obvious consequences. Low, you often need others to tell you that you are not focused, sweaty, uncoordinated and other telltale signs that family should be made aware of. When you crash low (if you crash low) is something the diabetic needs a support group (or person for) it is a simple fix, but it also is like experiencing a drug effects that don't come at you like a lion, but like a lamb.
The high end of your blood sugar level has consequences, the first at a high (but not deadly level) around 225 where your body quits healing, literally. So keeping below 225, beside allowing healing of cuts, bruises, post surgery, infections and more is critical to good health. Again with type 2, if you measure in those ranges you surely need meds to replace your bodies natural regulator - and is every bit as important as keeping a watch on the low numbers.
Anything I have ever read states that outside of a proper diet that exercise (not so much as weight control) but keeping a good heart rate and stamina is soooo very important.
Keeping a list of your test numbers vs. meal intake will paint you a picture that you can retweak your meals and exercise until you are happier with the test numbers. It can be an amazing experience that tunes you into your body's functionality unlike ever before, it isn't something anyone would want to have to deal with, but since you have no choice, you need to be the master, not the slave.
You can look back and say you took situation in your own hands and win on a day by day basis, with the biggest lesson being that you are a machine, which is how a doctor has to look at you as, and keeping the parts working well pays off with a long life and a healthier you. Best of luck and pay attention to how you feel when your numbers are all over the place, as time goes on with type 2, you may totally keep yourself into the zone and be the healthiest as you have ever been.