All I can say is "I know". I was EXACTLY like you for a while. I was taking like 8 vics a day and over last summer I saw a Dr. Phil show about prescription drug addiction and there was a woman on there who said she took 30 a day and I was like, "okay, now that is an addict! I will never be like that!". By December I was taking at least 30 pills a day. Denial is definitely a big part of it. Full pill bottle and you justify it by saying, "okay, the bottle is full and there is so little joy in my life that I deserve this" so you take half the bottle in a day and then before you know it, there are two pills left, not enough to get high which in the panic that leaves you in, is all you want. So you are lying and scheming and denying to get what you want. You are right, we are addicts but we are people too.
I think you at least need to give yourself credit on the fact that you are here and you are being honest! There are so many people out there who can't do that and are so far from doing that.
In the begining of my love affair with pills I was happier and more productive then I had ever been in my life. Now, NOTHING gets done, not even when I am high. Therein lies the problem.
I don't think anyone is ever ready to quit but eventually, you will realize that you have nothing to lose by quitting and everything to gain.
That is where I am.