Attachment to practice itself Is it wholesome to set expectations for one's own practice (e.g. to have a mind free of all Five Hindrances, or to have all Seven Factors of Awakening present)? 

To firmly commit to the path of enlightenment, against all worldly distractions,  how can this be done without setting goals or expectations? 

If there are conditions for the presence/absence of the Five Hindrances, Seven Factors of Awakening to arise and to pass, are these not impermanent? If one clings to the impermanent, does this not lead to dukkha?
That is a very good desire to have, @avatar Korra. Such desires are often helpful in the path. That kind of conceit can be a good thing. Setting expectations for one's own practice and desiring to do well, in thinking that “Other people can do this, why can’t I?” helps.  Those are actually useful tools in the path. But it is important to remember well to keep it to self, and let your actions speak. This is the most important advice that a noble friend can give you in this regard (Please do not ask me as to why it is so. It is up to you to take this advice or leave it. How this truism plays out in your life is a mystery. So you will have to be mindful of your actions, and its results, and learn from it.) Then you will one day get to see that only such people who heed this advice are likely to pursue this demanding path of practice all the way through to the end.