increasing meds to keep numbers in control.

I no longer have prescription coverage. I went off my Janumet and I am only on Metformin 2000. My 2Hr check is sometimes 200. i want my numbers (A1C 6.5) to be in normal range but I don't think I can be strick enough. I guess my question really is, is more meds worth keeping the numbers in normal range with a little cheat every once in a while or should I keep trying to eat like a bird to control it with Metformin most of the time.