Buying a glucose monitoring kit ?

I ( 24F ) have non diabetic reactive hypoglycemia. I’ve been experiencing lots of drops in my sugar lately , and have been considering purchasing a glucose monitoring kit from like CVS/ Walgreens / etc. because I don’t currently have health insurance so going to a doctor is out of the equation rn. The issue is, I’ve never actually monitored my blood sugar levels before, so I don’t exactly know what to purchase . Can anyone help me out please?