You are unlikely to be prescribed a monitor as a Type 2 not on any medication however many self fund a monitor and strips as it is a valuable tool for them to check what foods and meals their body can tolerate without causing a big increase in blood glucose and that will then allow them to make better food choices either by reducing portions of the high carb foods or cutting them out completely.
It is difficult to be definitive about how many carbs people should have per meal or per day as everybody is different in their tolerance and even the same number of grams of carb can vary in it's effect on blood glucose depending on whether it is bread or rice or pasta for different people. Hence a blood glucose monitor allows you to tailor your diet for you.
It also allows you the monitor your progress day to day, week to week etc.
It also is a good idea to test if you feel unwell to see if that is related to high or low blood glucose.
It may be your fatigue is worse on the days your blood glucose is high which could be related to the food you have eaten.
Inexpensive monitors can be bought on line, the GlucoNavii or Spirit TEE2 are ones with the cheaper strips but still worth shopping around as prices do change, look at the cost of strips as that will be the thing that is consumable.
You are certainly right there is lots of information out there to sift through but the overall message is that carbohydrates convert to glucose so it is those you need to reduce your intake of and base meals on protein and healthy fats which do not convert to glucose with plenty of veg and salads.
On the days you don't feel like cooking then salad, coleslaw and cooked meats or boiled eggs can make a easy meal.
Full fat Greek yoghurt and berries makes a good breakfast or desert, filling and low carb.