Welcome to the Forum!
Read the first three threads in the Type 2 Section when you get a chance. Successful management of T2 diabetes begins with a lifestyle change. Read and learn all you can on your condition, education is key.
The meter problem may be from old strips or
meter discrepancies. You can take blood sugar readings, one after another, and probably never get the same reading. The best blood sugar meters on the market are still only within 10% to 20% accurate. This is just one of the many problems with having diabetes. The world of technology is still lagging for us.
Good luck with your control and management.