Thanks AdrianHi @ecole62 Your HbA1c is an average over approximately 3 months while your finger prick is instantaneous level at that moment in time. Most of us test first thing in the morning to get an approximate fasting BG level. If you test before you eat and then two hours after eating you can see what effect the meal had on you. Ideally you are looking for no more than a rise of 2 or 3 with a value below 8.5 two hours after eating.
Metformin helps to lower insulin resistance. After diagnosis I was started on 1xmetformin a day and it took me about 6 weeks to get below 6 but everyone is different in the way they respond.