First day of daycare!!! Ahhhh!

Holy crap I'm so happy but extremely nervous and anxious!!!! My 4 year old starts day care today for 2 days a week today to develop his social skills and get him ready for school. I'm so excited for him because I know he'll have alot of fun. But I can't stress out enough that he is autistic and an extreme flight risk so I'm going to be so scared today!!!! The daycare knows all about him and will have a helper the fpr special needs kids but omg I can't stop worrying. I have 2 children and I have always watched them! First time someone is watching my child for a day!! I don't go anywhere. It's really sad hahah. I just feel like I'm their parents so I'm the one that watches them instead of handing them off to the next person...... sorry for the rant I'm just so nervous! !!!!