If you scan that often, you may benefit by "pimping" your Libre with something like a Miaomiao or Bubble.
These convert the NFC signal from Libre to Bluetooth which sends the reading direct to an app on your phone.
You no longer need to risk RSI from all that scanning and you can set up the app to alert when your blood sugar gets too high or low.
There is a one-off cost of around £100 but once you have your attachment, you can recharge it and use it again and again and again.
For those who know how to make corrections with their insulin, I think it is great ... but needs to be treated with care as it is easy to over react and end up too low. I have seen that referred to as "rage bolusing".
Sounds like you are doing well.