1) No - neither the meters & strips or the Libre devices. I don't measure my blood glucose but changing my diet has worked to get my Hba1C into the pre-diabetic range.
2) I think so, but there is an online page you can use to check:
https://services.nhsbsa.nhs.uk/check-for-help-paying-nhs-costs/start
3) You should get separate diabetic eye checks. You should still get your normal eye tests, tell the optician about your diagnosis. Where I live I had one soon after diagnosis which was fine and another a year later. As that was also fine it's 2 years to my next one.
4) Probably not as you are not on medication. See
https://www.gov.uk/diabetes-driving