"Eating to your meter" and eating per the meal plan designed by the diabetes educator may conflict. I have a few thoughts. Your weekend numbers don't look that bad. Have you tried skipping the bedtime snack to see the effect on your morning numbers? Does Metformin require it be taken with food?
Can you describe a little bit about what the diabetes educator recommends for your eating plan? How many carbs per day and per meal are built into this plan? Most diabetes educators don't believe in restricting carbs. What kind of meals is the educator recommending? Can you list a few sample meals?
The idea of eating to your meter is to identify your threshold of carb intolerance and which carb-heavy food are the worst offenders.
How many carbs are you eating for lunch during the work week? Eating to your meter means measuring your BG before you eat, write down what you eat, and then measure about 2 hours after you eat. If the result is not acceptable, then identify the offending food or quantity and adjust that meal for the next trial.
Don't blame yourself! You are in this for the long run, not for a few days or weeks. You are trying to learn and adjust and this process is not a straight line venture. It may be two steps forward, one step back. Your sustained effort to get this right will pay dividends, but you must persist! It's not easy but is so worth it.