HELP new mama worried about daycare

Just looking for some advice and/or encouragement on how to get over the guilt of leaving my baby with a babysitter... how do I let go of my worries and learn to trust someone else with my baby?! It feels impossible. I know she is competent and everyone whose babies she watches have nothing but great things to say but it’s so hard for me to fathom leaving him with her.. because she’s not me. I’ve only left him with his dad so far so I’m dreading it.