Your approach to getting her used to the carrier before the first outing in it is great! We tarted taking our grey Dayo in carriers when he was just 12 weeks old from the breeders home to ours , where he would spend 4 or 5 hours here then back to the breeders.
As was suggested, acknowledging contact calling is important, even if you do not physically go back in the room, a return call keeps them feeling secure knowing you are with in ear shot. She will get used to leaving, but will of course cry and break your heart leaving you feeling guilty. They are so needful when young. They call in the wild as well when both their parents fly off to get food. But once they know they are out of range, they settle down and just chill until the return with food.
AS she matures, you will find when you leave she will be anxious, but when you walk out the door amny times she will probably just say "ok, see ya later". She will be secure in the thought of knowing that you always return.l
I say go for it in regards getting her used to traveling, new places and new people. The more socialized she is, the better.