Well, your post prandial (after eating) numbers are a a bit high...so I would say there is an issue there. Its good you have a meter and are testing. If you find that you are not back down to normal within at least 2 hours after eating, then you are eating more carbs than your body can deal with. I would suggest restricting your carbs and see if it makes a difference. Get yourself a good little carb counting book or there are plenty of websites that have carb contents of most any food you think of (even restaurants and fast foods). Start out at around 30 grams of carbs for breakfast, and 45 for lunch and dinner. If you must have snacks, stick to around 15 grams. Then test around your meals for a little while. If you find you are not back down to what you were before you ate within 2 hours, then lower the amount of carbs you are eating and try again until you find the amount that works for you.
Whenever possible, stick to complex carbs like whole grains, brown rice instead of white rice, sweet potatoes instead of white ones, whole grain pasta instead of regular pasta. Become a label reader, try to avoid foods high in HFCS (high fructose corn syrup).
And, I know its hard with no insurance....but I really have to say it....see a doctor. You need to have some bloodwork done. At the very least an A1C will tell you approximately how your blood sugar has been running over the last three months. You can buy home A1C kits....but there really is no alternative to seeing a doctor. Is there some sort of clinic in your area that has a payment plan on sliding scale according to your income?
Good luck and please ask any questions you might have. We love to help where we can