I was told when I entered my OR program that I would not be comfortable for a year. Don't give up or leave, ask them how you can improve. Ask your manager to have the pick lists updated and have someone show you how they find things quickly. Our center core LOOKS like a big mess but when someone explained the layout such as all laparoscopic stuff here, all general stuff there, vascular down there, hands, eyes, totals etc. it made sense. Tell them you want more time in orientation. I have been a nurse for 15 years and I am getting 6 months. For a new grad to get only 3 months is crazy. Do you think that the people that work there, doctors included where completely with it 3 months out of school? Again, don't give up, ask for more time, tell them you will take their criticisms but if they do they have to show you a way to improve.