Hi Angela ...welcome to this forum. Lots of nice people here offering good advice and support. I'm struggling to get my numbers down too, some days they're great, other days they're pants. Trick is to have more good days than pants days. It'll take time but as has already been suggested, start with your food intake. You'll have already cut out the blindingly obvious like sweet fizzy drinks, sweets, chocolates, biscuits and cakes. Now watch out for potatoes, rice, pasta, bread & breakfast cereals. Eat little of these because they push your levels up like crazy. Start checking labels in Supermarkets for Carb content (forget the 'of which sugars bit' it's not important at this stage) Look at the total figure per 100g and get stuff which is as low as you can get. Sadly, this will mean that some of what you currently eat will become a rare 'treat' if you eat it at all. The whole Diabetes thing means making changes to your life but the good thing is that you won't need to change them all at once. It does take time.
Take it steady and you'll find your levels will come down pretty soon.