Working mommies - starting daycare

Hi mamas!  I'm enrolling my daughter in daycare this Wednesday then going back to work the following Monday.  It's a great daycare place and I know everything will be okay.  I have to work, unfortunately I don't have the choice to be a SAHM.  I'm feeling anxious about it even though I know it's for the best.  Anyone have any survival tips or words of encouragement?