When you are new, and just learning how to do a job, it's normal to get confused from time to time. There is nothing wrong with asking a more experienced coworker to help you out.
However, when you do ask a more experienced coworker for advice, don't stand there and argue with everything she tells you to do.
Trust me, the odds are pretty good that the one who has been doing the job for 15 years knows it just a bit better than the one who has been doing it for an hour and a half.
Remember, nobody likes a know-it-all, especially not the one who could probably do the job in her sleep.
That is all.