If you have CC of 2, you've got something growing in there and should shock. FC of 0 is bad. CYA of 0 is bad. You need to get some bleach in there ASAP.
If others agree that you need to shock, you will want to get some CYA (you can buy it at wal-mart, pool store, etc.) and use the pool calculator to figure out how much to add to reach 20 or so. Put it in a sock in the pool. Plug 20 in as your CYA and you want your target FC to be 10. Add that amount of bleach. Test as often as you can, hourly as possible, and keep your FC above 10 until you have completed the shock process. You will want to read up on this in pool school. After shocking, you will want to add more CYA to raise it up closer to 40.
If you don't shock, at the very least, this is what you need to do: Go and buy some CYA. Use the pool calculator to figure out how much you will need to reach a CYA of 40. Add this in a sock. Aim for a FC closer to 3-4 the first day and after 24 hours, you need to start keeping it at 5, never letting it fall below 3. If you find that it falls below 3 each day, you may need to aim for 6-7 as a target FC.