I find myself in Paul's dilemma as well. Those things that I know to do, I don't do, and those that I shouldn't do I do.
I know it is not quite what Paul faced but I have been praying to God to wake me from my sleep early, at around 5:30 each morning. He does His part by waking me up, but my flesh likes to lay in bed until I have to get up. I also know that TV is something that takes up entirely too much of my time, stopping me from doing those productive things, I know I should be doing.
What in your life is keeping you from doing what you know you should do, and what are those things that you shouldn't do that you are doing?
13 Has then what is good become death to me? Certainly not! But sin, that it might appear sin, was producing death in me through what is good, so that sin through the commandment might become exceedingly sinful. 14 For we know that the law is spiritual, but I am carnal, sold under sin. 15 For what I am doing, I do not understand. For what I will to do, that I do not practice; but what I hate, that I do. 16 If, then, I do what I will not to do, I agree with the law that it is good. 17 But now, it is no longer I who do it, but sin that dwells in me. 18 For I know that in me (that is, in my flesh) nothing good dwells; for to will is present with me, but how to perform what is good I do not find. 19 For the good that I will to do, I do not do; but the evil I will not to do, that I practice. 20 Now if I do what I will not to do, it is no longer I who do it, but sin that dwells in me.