If there is no "I", who or what is controlling my animalistic urges?

All sorts of impulses and urges in human and other beings are invoked by nature in order to sustain life. In my way of thinking, it is a rational "I" who attempts to control reacting to these impulses and urges. If there is no "I", how am I supposed to see or think of my acting self? Is this "citta" or the "empirical self"? As I understand it "I" am not an unchanging thing but merely an accumulation of conditioning resulting in habits; a point of view to which modern science would likely not oppose. However, I have or am, then, still a mind (citta)? Is it this mind that has accumulated karma in this and past lives? And how is that, then, not, in a way, "me"?