Now you have a T2 diagnosis, it would be helpful if you could complete your profile settings to show the type of diabetes you have, the treatment, and the medication (none in your case). This helps when members are trying to help you, and saves people forever asking.
Your cholesterol is a bit low, in my opinion. Are you taking statins? Do you know what the breakdown is - HDL/LDL and triglycerides? The total cholesterol is quite meaningless without the breakdown. Did you ask the nurse for a print out of your test results? You could do with one. It is important for us to know our numbers. Not just glucose and cholesterol but also liver and kidney functions. You are entitled to these print outs, and the receptionist should be able to sort it out for you.
Whether you eat porridge or not is up to you, not your nurse. She doesn't have your glucose problems, and eating it will not help those. So are you going to buy a meter and test strips? You ought to and then you can see for yourself what the porridge is likely to do.