"I managed to trick another doctor into giving me more....." Us addicts, we think we are so smart and able to trick people into doing what we want, in realty we are only able to trick our selfs into believeing we have that power. "I'm not ready to go back to NA" NA will make it without you or any of us, what you need to ask yourself is how much longer can you make it without NA.
Go to meetings, get a sponsor, work you steps, and Live A Happy Life. I love you and I want you to please get REAL with yourself.