Tell that to the patients on ventilators who have to sue the hospital to actually treat the patient, and then days later they are off the vent due to Ivermectin. Now imagine giving the medicine the day of testing rather than 3 weeks later on a ventilator?
I can't tell that to those patients because what you're describing is a fantasy created by anti-vaxxers to justify their position.
Literally the most basic principle of medical research is that giving patients (even millions of them) a drug and watching them improve means absolutely nothing about the effectiveness of the drug.
You can only learn if it works with large-scale, double-blind studies, and all of those show that ivermectin does nothing for Covid outcomes.
You should be able to get the Libre 14 day sensors for about $120/per month (2 sensors) without insurance. I've been using it for about a year and it has been a huge game changer for me. I've been on insulin for about 23 years. The Libre doesn't have alerts but being able to tap your phone to your arm to test your glucose makes a big difference in how you test/monitor even without alerts.
The alerts (of the G6) are certainly desirable (amazing). But, as mike notes, even just being able to check your glucose with 0 effort... just changes everything. You wind up checking it so often that it's more than just checking it, you get more of a feel for how your body is reacting to your food/activity/etc. I can't say enough positive things about it.