Self Doubt

Sooo, the SWW is SOOO young, yes, she is five years old but very immature socially and emotionally.  I am wondering if I made the wrong choice sending her to the public school kindergarten.  Should I have gone with the friends school and just sucked up the cost?  She is finding it very overwhelming and keeps telling us that she wants to stay a child because growing up is so hard.  Maybe I'm misinterpreting?  I don't know.  She hasn't made any friends at school and I am amazed since she does great at a playground making friends with unknown children.  But there is no recess in at kindergarten.  Her teacher is fantastic.  She is acting like a baby here at home.  Don't know, my husband would tell me that I don't know what I'm talking about.  Probably because he wouldn't want to spend the money.  He was thrilled that the pre-school cost was gone.  Maybe I'm being paranoid?  Just being a worry wart?