Weight is higher than average but lower than average for people experiencing insulin resistant Type 2. Weight may be a general indicator of Type, but they’d maybe also be looking at your blood pressure, triglycerides, and any skin changes associated with high insulin.
People with Type 1 are low on insulin, and would probably test positive for specific antibodies due to autoimmunity. Younger people tend to be at higher likelihood of Type 1, but that isn’t always accurate either.
So, where to start lowering your glucose? You stop drinking beverages that have sugar in them. You can look at the labels on the back. If there is any significant amount of sugar or carbohydrates in your drink, don’t drink it — soda pop, iced tea, fruit juices, regular or sweetened milk, energy drinks.... Either skip them and drink water, or find a comparable “diet” or “sugar-free” version.
Next, go to a pharmacy and get a glucometer if you haven’t already got one. (You can buy one at like Walmart Relion or CVS Health store brands with relatively inexpensive test strip refills.) Your insurance, if you have any, may cover the cost of some strips per day, but you’d have to coordinate with the insurer and your doctor, to get a prescription. Test. Test enough so that you are learning how your body works with your favorite foods, and yang new foods.
Set a target to stay within. Normally, people keep within 70-120 all day, and not above 140 after eating for very long (always below 140 after 2 hours have passed). Depends where you are today, but maybe you try to get below 180 all of the time this week, and then always below 170 next week, and keep trying till you get closer to normal.
What you choose to eat depends on what you like somewhat, and what your body has to say about it. Many of us can tell you that reducing carbs helps a lot. Reducing or avoiding products that contain a lot of wheat, corn, rice, potatoes, and sugars will spike your glucose and flood your body with more energy than it can handle. Your body will respond with high insulin output, if it can, to try and move the glucose into your cells, then into glycogen stores in your liver and muscles, and then into fat storage. Having high insulin levels both promotes excess weight gain and also prevents stored fat from being used as energy. So, some of us are going to recommend low-carb foods to solve this equation. That can be either concentrating on more protein or concentrating on more fats (keto). Both ways recommend eating non-starchy vegetables for nutrients and enough carbs to keep your body and tastebuds happy.
Other ways of eating might be a more plant food based approach. Or you might be able to just eat a lot less if you have that kind of will power. Some people reduce their portion sizes, while other people eat less frequently. The point is to return your body to a better balance. You indicate you have excess fat weight, so you have to get your body to release that excess storage via dietary choices, and maybe also via exercise, and then you have to approach food forever in a healthier way.
As far as exercise, you can start simply by walking. Around the block or to the store, or around the neighborhood. Charge your phone, or go with somebody if you like. A lot of schools have accessible tracks, or you can find a treadmill if you prefer indoors. Walking is helpful. Weight resistance and strength training is also helpful to many people.
If your glucose stays high, then medication may be part of your solution. Usually metformin is the beginner medication. There are many others available. If you are low on insulin output, then you have to also use insulin shots to bring you back to where that needs to be each day.
No need to be scared. You’ll be fine. Takes a while to understand, to find a grove, and a group of like-minded folks. You deserve to be healthy again, and you can get there. Test your glucose, make adjustments.