Guitarguy,
You are not worthless. Anyone who tells you that does not value what life really is. Sure there are times that it is difficult to be able to do much, but I am sure that you can ind moments, no matter how short they may be, that you are able to do things to help others out. It may be as simple as just being able to sit and listen, or enjoy a good conversation with a loved one. Take advantage of, and cherish those moments with those you love or care about.
You may want to find another pharmacist. I know that many schedule II & III prescriptions have been under new regulations since August of last year, but if a doctor writes a prescription for you, and the pharmacist does not have enough to fill it, they are supposed to note in their system, or even written on the prescription bottle with their initial, that they so much was given, and a balance that is owed. My pharmacist has dome that three times so far. Once with Methadone, Once with Norco, (hydrocodone), and recently with Percocet, (oxycodone). These were all done within the past three months.
Times may be difficult for you right now, but if you are willing to fight to do better, you will get better. Gentle hugs for you