Should practice of eightfold path be seen as self?

Should I see right practice as not self? The same question is phrased three times over, in different ways, below. As context, I am a householder that seeks to eliminate suffering. **Question from Buddhist point of view** I want to let go of everything but right practice. This allows me to see many things as not self, unphased. For example, feeling tired or aroused or discontent. These things are not part of right practice, so I am able to see them as not self and let them pass by. It then feels like a wave has passed by me, and fully knowing that the wave was not self, and fully footed in overcoming craving, I feel no need to look back at the wave. However, when thoughts of diligence come up, and of right speech, I am hesitant to see them as not self. I am afraid that if I see them as something that will just pass, something to be impassionate about, that I will then deviate from the right path. The concept of right path too, is something I am hesitant to see as not self. How to proceed? **Question with Christian example** In Christianity, there is the concept of the new man and the old man. Practitioners are said to never be able to hope to shake off the old man in them (until Jesus returns). Practitioners are told to strive continuously to *be* the new man. Is the Buddhist answer to let go of the new man too? **Question with concrete example** I have a thought about turning on the TV. The matters in that thought are not about giving up craving, not about mindfulness, not about being metta, so I give up the thought and don't look back at it. Then I have a thought about doing well at a new job. Usually I have doubtful thoughts about the new job. The thought of working hard at the job I see as related to diligence. I do not give up the thought and entertain it. Whereas the TV watcher is clearly not self - something that has arisen from a place that is not self - the thought of working hard at the job now feels like self. I am about the thought, the thought is about me. There is a self and the self is concerned with the thought. I don't feel it's possible to overcome the sense of self without giving up the thought, and giving up the thought I don't feel is possible without the giving up of diligence. If someone suggested that you could have not-self AND thought entertainment, I think I would brush that off as them not speaking from experience. Should I give up right diligence / right livelihood?