Right decision.
First, get that meter replaced and while you're waiting for the replacement you can still address the carbs in your diet. At first some people think that lowering carbs is restricting but it's not really. Cut down or cut out the foods that have the highest amount of carb in them such as bread, potatoes, pasta, rice and anything made of flour. There are low carb alternatives to bread in supermarkets that you could try such as HiLo at Sainsburys etc and Burgen. Swap out potatoes for extra above ground veggies. As you lower your carbs you should raise the amount of healthy fats (of your choice) to provide you with the energy you lose from carbohydrates.
These are the basic things but your meter will show you which foods affect you most. Any questions, please do not hesitate to ask.