Try to keep a level head. Don't panic, don't stress and rush. You need to be thorough and you need to pay attention to every detail. Sometimes the smallest detail overlooked can lead to the largest error.
Become comfortable with the "tech work." It is my opinion that, as a pharmacist, you should be able to adequately perform every function in the pharmacy. You are not above it. This is part of what you do. You may find yourself in an emergency situation without anyone to help you. That's not the time to learn how to make an IV, or to locate a life saving medication (especially with how ridiculous some of these inventories can be).
Don't let anyone rush you, or pressure you into doing something in a way that you are not comfortable with. This will probably happen if you are new and the other pharmacists think their way is the best and only way. Remember that, at the very core, you are still an independently licensed practitioner. It is up to you to call the shots. If a serious mistake is made, it is your livelihood that is on the line.