The NICE recommendations state a newly diagnosed T2 should be monitored 3 months after diagnosis, and that this should continue until the blood sugar levels are within a reasonable target and the medication is stable. At that point you can move to 6 monthly bloods monitoring, with a face to face review at 6 or 12 monthly intervals.
Your medication won't work on its own. It isn't a miracle cure, it is just there to give a little help. You also have to follow a suitable diabetic diet, which means cutting right down on those carbs. I suspect you are still eating too many, or your levels would be much lower.
Keep testing before and after food - any rise of above 2mmol/l (preferably less) and that meal was not an ideal one for you.