Christ is Risen!!
I agree that this is a question for your pastor or spiritual father.
For my part, I have memorized my own prayer rule and have found it useful to pray a part of it whenever time permits over the course of the day. I always seem to find time to fill a few minutes here and there. I take the idea that my prayer rule is a constant conversation with Our Lord. So why can I not say something to Him when I am driving to work? Or pray when I am traveling for business and find myself alone eating in a restaurant? And I always make use of the Jesus Prayer--I don't try for any great things; I just remember that the squeaky wheel gets the grease.
Another suggestion that I've been given is that the Lord knows my intention. So if I ask Him to remember my usual intentions--the people I intercede for, the contrition I offer daily, the thanksgivings I make--He will fill in what I may not have the time to fill out completely. He blesses the struggle, I've been told, and that gives me hope.