I dont know if your insurance will cover them. Mine does as long as the doctor prescribes them. If not, I think Walmart is pretty reasonable. If you are eligible for medicare (sorry I dont know how old you are) I think people are able to get them home delivery and covered.
Good luck and I am sure you will get the hang of it all soon. There is a lot to learn and I know it can be overwhelming at first. There are some great people here at answering questions though.
Be well,
Pam