I use a FreeStyle meter that allows you to use "alternate site testing". I can use the lancet on the side of my thigh, my forearm just below the elbow, and on my palms as well as my finger tips. My mom wants to switch to my meter because hers requires a lot of blood and the test site must be on her finger tips. I need only a pin-head sized drop of blood to do the test; she needs a lot more.
I'm sure you are upset by the change in your health status and the fact that you have to "poke yourself" several times a day. Still, it's for your health and will give you control over your condition! As CityCotton said, you'd advise your students to do what they must to stay healthy. (I recently retired from a 30-year teaching career.

) You should do no less for your self.