I am just not ready 😭😭😭

My youngest is starting pre k this next school year. I am having such anxiety about her going. She has been at home with me for the past 4 years. She is almost never with anyone else unless I have to go to the doctors or something. The teacher she will have is so amazing. My oldest daughter had her and she was wonderful. I’m just so nervous about her going to school for a full day 5 days a week. It seems like so much to start out. I just saw her teacher posted on Facebook about getting stuff ready for the next school year with take home binders and I lost it 😭. My daughter has been having major separation anxiety like when I leave she freaks out! I mean hysterical. All I keep thinking is what if she needs me 😫. Being pregnant and over emotional doesn’t help either. Someone tell me she will be fine and I’m over reacting.