Only you can answer that question and if you are here asking i think you know the answer. There are a few red flags in your thread. Taking them that many days a week to relax and take the edge off is a big one. Do you want to quit taking these?
You are taking codeine, a narcotic used for pain, and narcotics are addicting. Since you are not taking a huge dosage, if you cut down very slowly you should be able to get off the stuff. If you have trouble with this, see your doctor.