being told what to do

If anything medical school has prepared me to follow set guidelines, think in  a certain line of thought, check labs and facts, double check labs and facts, ask questions, and most importantly do as I am told.  I see patients all day long take their histories, examine their bodies, document the information and present it to a senior either a resident or attending.  Most commonly said senior will say mmhmm ok lets do xyz, give them this, and see them back in x months.  Occasionally they may ask well what do you think they have? and even then I may guess correctly but still they will proceed to say give them this and do that etc.  In theory I am supposed to internalize and process this information about treatment for said condition - but usually happens is that i write it down, document it in the chart, explain it to the patient. and poof its gone outta my head.  So i n SUm what I learned from a day of seeing patients is how to  follow directions.  I fear for myself as I enter intern year as I am expected to not only do the bidding of all senior residents and attendings but make decisions on my own about treatment for my patients.  Granted there will still be some presentations and modification and for the sake of my patients and myself I hope that it is not more of the same sort of "do what I tell you" learning.