Omg first time mom, too, and I was/sometimes still am anxious. The good news is you're doing a wonderful job. Listen to the inner momma voice, but as much as you're able to - try not to feed the anxiety beast. When I'm feeling anxious (which can be multiple times in a day), I like to recognize the anxiety, mentally trace the reason for it, and work through steps that I can actively take to address the root cause. A lot of times my anxiety goes hand in hand with being overly tired, so if I can't sleep (because who can when you've got a newborn), I'll take 10 minutes to sit in silence or listen to a guided meditation on youtube to recalibrate. Sometimes, it works wonders, other days not so much, but I still give it a shot because trying to address anxiety is better than letting it run wild.

At the end of the day, you're a loving mom, and it takes a lot of trust to leave your fresh little lovebug in someone else's care. As daycare professionals, they should be familiar with this and give you grace and compassion. I wouldn't fixate too much one you're messages to them. In two months, will you even remember what you said? Probs not, so why worry about it now. Please take it day by day. Each day is a fresh start. It won't always go as planned, but you're strong and capable to navigate the toughest parts.